| Organization | Links | Recs | Related | Infra | Image |
|---|
| Kaaterskill Railroad | 2 | 9 | | | |
| Kalamazoo and South Haven Railroad | 15 | 50 | | |  |
| Kalamazoo and White Pigeon Railroad | 14 | 37 | | | |
| Kalamazoo, Allegan and Grand Rapids Railroad | 5 | 30 | | | |
| Kanawha and Michigan Railway | 2 | 28 | | |  |
| Kanona and Prattsburgh Railway | 1 | 10 | | | |
| Kansas Academy of Science | 2 | 28 | | | |
| Kansas City Athletics | 2 | | | | |
| Kansas City Cowboys | 1 | 107 | | | |
| Kansas City Gas Co | 1 | 11 | | | |
| Kansas City Gas Light and Coke Co | 1 | 4 | | | |
| Kansas City Journal | 1 | 4 | | | |
| Kansas City MO Times | 1 | 3 | | | |
| Kansas City MO World | 1 | 2 | | | |
| Kansas City Public School system | 2 | | | | |
| Kansas City Royals | 9 | | | | |
| Kansas City Southern Railway | 5 | 129 | | 🚂 |  |
| Kansas City Stock Yards Co | 1 | 17 | | | |
| Kansas City Stock Yards Co of Missouri | 2 | 5 | | | |
| Kansas City, Clinton and Springfield Railway | 1 | 11 | | | |
| Kansas City, Fort Scott and Gulf Railroad | 2 | 39 | | | |
| Kansas City, Fort Scott and Memphis Railroad | 3 | 83 | | | |
| Kansas City, Lawrence and Southern Kansas Railroad | 1 | 10 | | | |
| Kansas City, Memphis and Birmingham Railroad | 2 | 19 | | | |
| Kansas City, Springfield and Memphis Railroad | 1 | 7 | | | |
| Kansas City, St Joseph and Council Bluffs Railroad | 4 | 55 | | | |
| Kansas Gas and Electric Co | 1 | 16 | | | |
| Kansas Natural Gas Co | 2 | 18 | | | |
| Kansas Pacific Railway | 9 | 73 | | | |
| Kappa Alpha Society | 2 | | | | |
| Kappa Mu Epsilon | 1 | | | | |
| Kappa Sigma Fraternity | 1 | | | | |
| Katz Underwear Factory | 1 | | | | |
| Keeper | 1 | | | | |
| Keeper of the Jewels to King Henry | 1 | | | | |
| Keith Brothers and Co | 1 | 3 | | | |
| Kellogg Clarke & Co | 1 | | | | |
| Kelloggs Co | 1 | | | | |
| Kenmore Association for Historical Restoration | 1 | | | | |
| Kennebec and Portland Railroad | 3 | 24 | | | |
| Kennebec Journal | 1 | 3 | | | |
| Kennedy Center for the Performing Arts | 1 | | | | |
| Keno Mining and Milling Co | 1 | 4 | | | |
| Kensington Water Co | 1 | 2 | | | |
| Kentucky Agricultural Association | 1 | | | | |
| Kentucky and Indiana Bridge and Railroad Co | 1 | 11 | | | |
| Kentucky Central Railroad | 5 | 35 | | | |
| Kentucky Constitutional Convention | 9 | | | | |
| Kentucky Derby | 1 | | | | |
| Kentucky Geological Society | 1 | | | | |
| Kernick Divide Mining Co | 2 | 5 | | | |
| Kerr Lake Mines | 2 | 10 | | | |
| Kerr Lake Mining Co | 1 | 8 | | | |
| Kewanee Light and Power Co | 1 | 4 | 1 | | |
| Keweenaw Central Railroad | 3 | 13 | 1 | | |
| Keweenaw Copper Co | 3 | 11 | 3 | | |
| Key West Electric Co | 7 | 11 | 1 | | |
| Keystone Carbon Paper Manufacturing Co | 1 | 2 | | | |
| Keystone Coal and Coke Co | 1 | 10 | | | |
| Keystone Coal Co | 1 | 6 | | | |
| Keystone Development Co | 1 | 2 | | | |
| Keystone Engineering Co | 1 | 2 | | | |
| Keystone Forging Co | 1 | 1 | | | |
| Keystone Radio Control Society | 1 | | | | |
| Keystone Telephone Co | 2 | 18 | | | |
| Keystone Watch Case Co | 3 | 17 | | |  |
| Kickapah Divide Mines Co | 1 | 7 | | | |
| Kilburn Mill | 1 | 2 | | | |
| Kimball Union Academy | 1 | | | | |
| King Bridge Co | 1 | 3 | | 🚂 | |
| King Broadcasting Co | 1 | | | | |
| King David Mining Co | 1 | 4 | | | |
| King Philip Copper Co | 5 | 9 | | | |
| King Philip Mills | 1 | 10 | | | |
| Kings County Electric Light and Power Co | 3 | 23 | | | |
| Kings County Lighting Co | 1 | 10 | | | |
| Kings County Trust Co | 2 | 29 | | | |
| Kings Weekly | 1 | 1 | | | |
| Kingsboro Realty Co | 1 | 3 | | | |
| Kingston Fire Department | 5 | | | | |
| Kingston Gas and Electric Co | 1 | 5 | 1 | | |
| Kingston National Bank | 1 | 1 | | | |
| Kiwanis Club | 1 | | | | |
| Klots Throwing Co | 1 | 10 | | | |
| Knickerbocker Club | 4 | | | | |
| Knickerbocker group | 5 | | | | |
| Knickerbocker Safe Deposit Co | 1 | 8 | | | |
| Knickerbocker Trust Co | 2 | 28 | | | |
| Knight Investment Co | 1 | 7 | | | |
| Knights of Columbus | 4 | 1 | | | |
| Knights of Malta | 1 | | | | |
| Knights of Pythias | 20 | | | | |
| Knights Templar | 6 | | | | |
| Knox Divide Mining Co | 1 | 8 | | | |
| Knoxville Gas Co | 1 | 7 | | | |
| Koch Oil Co | 1 | | | | |
| Kokomo Gas Co | 1 | 4 | | | |
| Kraft Foods | 1 | | 2 | | |
| K. L. C. E. Journal | | 3 | | | |
| K. P. Magazine | | 2 | | | |
| Kaeser and Blair | | | | | |
| Kaffee-Klatsch Co | | 3 | | | |
| Kahoka Savings Bank | | 1 | | | |
| Kaibab Copper Co | | 2 | | | |
| Kalamazoo and Allegan Railroad | | 11 | | | |
| Kalamazoo and Grand Rapids Railroad | | 9 | | | |
| Kalamazoo and Grand River Railroad | | 8 | | | |
| Kalamazoo and Lake Michigan Railroad | | 10 | | | |
| Kalamazoo and Schoolcraft Railroad | | 13 | | | |
| Kalamazoo City and County Railroad | | 5 | | | |
| Kalamazoo Daily Telegraph | | 2 | | | |
| Kalamazoo Gas Co | | 3 | 1 | | |
| Kalamazoo Gas Light Co | | 3 | | | |
| Kalamazoo MI Telegraph | | 6 | | | |
| Kalamazoo National Bank | | 3 | | | |
| Kalamazoo News | | 2 | | | |
| Kalamazoo River Railroad | | 5 | | | |
| Kalamazoo Street Railway | | 7 | | | |
| Kalamazoo, Gull Lake and Northern Railroad | | 7 | | | |
| Kalamazoo, Lake Shore and Chicago Railroad | | 30 | | | |
| Kalamazoo, Lake Shore and Chicago Traction Railroad | | 7 | | | |
| Kalamazoo, Lowell and Northern Michigan Railroad | | 24 | | | |
| Kalgurli Gold Mines | | 4 | | | |
| Kalion Chemical Co | | 5 | | | |
| Kalispell Water and Electric Co | | 5 | | | |
| Kalispell-Troy Mining Co | | 8 | | | |
| Kalorama Citizens Association | | 20 | | | |
| Kaministiquia Power Co | | 8 | | | |
| Kamloops Copper Co | | 12 | | | |
| Kampong Kamunting Tin Dredging | | 4 | | | |
| Kanawha and Coal River Railway | | 3 | | | |
| Kanawha and Hocking Coal and Coke Co | | 5 | | | |
| Kanawha and Ohio Railroad | | 5 | | | |
| Kanawha Railway | | 4 | | | |
| Kanawha Valley Bank of Charleston | | 1 | | | |
| Kanawha Valley Coal Co | | 2 | | | |
| Kanawha Water and Light Co | | 5 | | | |
| Kanbauk Wolfram Mines | | 7 | | | |
| Kane PA Leader | | 2 | | | |
| Kankakee and Seneca Railroad | | 3 | | | |
| Kankakee County Trust and Savings Bank | | 1 | | | |
| Kankakee Gas Light Co | | 2 | | | |
| Kankakee IL Progressive Era | | 1 | | | |
| Kankakee IL Republican-News | | 1 | | | |
| Kankakee Mining Co | | 7 | | | |
| Kanouse Mountain Water Co | | 5 | | | |
| Kansas Agitator | | 2 | | | |
| Kansas Agricultural Experiment Station | | 4 | | | |
| Kansas and Southern Railway | | 4 | | | |
| Kansas and Texas Coal Railway | | 4 | | | |
| Kansas City and Independence Air Line | | 2 | | | |
| Kansas City and Independence Rapid Transit Railway | | 6 | | | |
| Kansas City Belt Railway | | 17 | | 🚂 | |
| Kansas City Blues | | 25 | | | |
| Kansas City Breweries Co | | 10 | | | |
| Kansas City Cable Railway | | 5 | | | |
| Kansas City Cowboys (NFL) | | 29 | | | |
| Kansas City Daily Drovers Telegram | | 1 | | | |
| Kansas City Electric Light Co | | 2 | | | |
| Kansas City Electrical Works | | 3 | | | |
| Kansas City Home Telephone Co | | 14 | | | |
| Kansas City Long Distance Telephone Co | | 6 | | | |
| Kansas City MO Church Life | | 2 | | | |
| Kansas City MO Life | | 3 | | | |
| Kansas City MO Star | | 3 | | | |
| Kansas City Packers | | 29 | | | |
| Kansas City Railway and Light Co | | 16 | | | |
| Kansas City Suburban Belt Railroad | | 6 | | | |
| Kansas City Terminal Railway | | 12 | | | |
| Kansas City Viaduct and Terminal Railway | | 2 | | | |
| Kansas City, Fort Smith and Southern Railway | | 8 | | | |
| Kansas City, Mexico and Orient Railroad | | 66 | | | |
| Kansas City, Nevada and Fort Smith Railroad | | 3 | | | |
| Kansas City, Osceola and Southern Railroad | | 3 | | | |
| Kansas City, Pittsburgh and Gulf Railroad | | 28 | | | |
| Kansas City, Watkins and Gulf Railway | | 12 | | | |
| Kansas City, Wyandotte and Northwestern Railroad | | 19 | | | |
| Kansas City-Nevada Consolidated Mines Co | | 11 | | | |
| Kansas Democrat | | 1 | | | |
| Kansas Educator | | 2 | | | |
| Kansas Electric Co | | 3 | | | |
| Kansas IL Journal | | 3 | | | |
| Kansas Medical Journal | | 5 | | | |
| Kansas Midland Railroad | | 2 | | | |
| Kansas Nevada Mining Co | | 5 | | | |
| Kansas Optimist | | 2 | | | |
| Kansas Southwestern Railway | | 7 | | | |
| Kansas Temperance Monitor | | 2 | | | |
| Kansas, Oklahoma and Gulf Railway | | 6 | | | |
| Kaque Copper Development Co | | 6 | | | |
| Karma-Ajax Consolidated Mining Co | | 9 | | | |
| Karrick Mining Co | | 2 | | | |
| Karrick, Gray and Williams Co | | 2 | | | |
| Kaslo and Slocan Railway | | 6 | | | |
| Kato Coffee Co | | 5 | | | |
| Katz and Hamorr Co | | 2 | | | |
| Kauffman-Meyers Co | | 17 | | | |
| Kaufman Brothers | | | | | |
| Kaufman County TX News | | 2 | | | |
| Kaufmann and Baer Co | | 8 | | | |
| Kaufmann Department Store | | 5 | | | |
| Kaufmann Realty Co | | 3 | | | |
| Kaukauna Gas, Electric Light and Power Co | | 3 | | | |
| Kawin and Co | | | | | |
| Kay Copper Co | | 5 | | | |
| Kay Mine Smelting Co | | 5 | | | |
| Keane Divide Mining Co | | 5 | | | |
| Kearney Gas Co | | 4 | | | |
| Kearney MO Clipper | | 2 | | | |
| Kearney National Bank | | 2 | | | |
| Kearny County KS Advocate | | 2 | | | |
| Kearny Observer | | 1 | | | |
| Kearny Record | | 1 | | | |
| Kearny Republican | | 1 | | | |
| Kearsarge Independent and Times | | 1 | | | |
| Keating and Smethport Railroad | | 2 | | | |
| Keating Implement and Machine Co | | 21 | | | |
| Kee and Chapell Dairy Co | | 4 | | | |
| Keeley Agency | | | | | |
| Keeley Brewing Co | | 3 | | | |
| Keen and DeLang Co | | 2 | | | |
| Keenan and Hyland Manufacturing Co | | 3 | | | |
| Keenan Brothers Manufacturing Co | | 3 | | | |
| Keenan News Agency | | | | | |
| Keene Brothers Hardware Co | | 3 | | | |
| Keene Electric Railway | | 2 | | | |
| Keene Gas and Electric Co | | 12 | | | |
| Keene Gas Light Co | | 2 | | | |
| Keene Savings Bank | | 2 | | | |
| Keeno Mining Co | | 2 | | | |
| Keeseville National Bank | | 3 | | | |
| Keeseville, Au Sable Chasm and Lake Champlain Railroad | | 6 | | | |
| Kehew-Bradley Co | | 3 | | | |
| Keithsburg IL News | | 2 | | | |
| Kellar-Thomason Co | | 20 | | | |
| Kellbug Institute | | 2 | | | |
| Kelley Lumber Co | | 2 | | | |
| Kelley, Maus and Co | | 6 | | | |
| Kellogg Galena Mining Co | | 5 | | | |
| Kellogg Switchboard and Supply Co | | 10 | | | |
| Kellogg United Mines Co | | 4 | | | |
| Kellogg-Mackay-Cameron Co | | 4 | | | |
| Kelly Axe Manufacturing Co | | 5 | | | |
| Kelly Brothers Co | | 2 | | | |
| Kelly Mining Co | | 3 | | | |
| Kelly Nail and Iron Co | | 3 | | | |
| Kelly News and Stationery Store | | | | | |
| Kelly Springfield Motor Truck Co | | 3 | | | |
| Kelly Wood Real Estate Co | | 2 | | | |
| Kelly-Atkinson Construction Co | | 3 | | | |
| Kelly-Springfield Tire Co | | 5 | | | |
| Kellys Creek Railroad | | 4 | | | |
| Kelsey Oriental Bath Co | | 2 | | | |
| Kelton-Bruce Manufacturing Co | | 3 | | | |
| Kemble Coal and Iron Co | | 4 | | | |
| Kemmerer Coal Co | | 3 | | | |
| Kemper Brothers Co | | 3 | | | |
| Kendall Barrows Co | | 3 | | | |
| Kendall County IL News | | 4 | | | |
| Kendall County IL Record | | 5 | | | |
| Kendall Divide Mining Co | | 4 | | | |
| Kendall Gold Mining Co | | 5 | | | |
| Kendall Lumber Co | | 4 | | | |
| Kendall State Bank | | 1 | | | |
| Kenmore Pulp and Paper Co | | 3 | | | |
| Kennan Mining Co | | 3 | | | |
| Kennard and Sons Carpet Co | | 7 | | | |
| Kennebec Banner | | 1 | | | |
| Kennebec Central Railroad | | 10 | | | |
| Kennebec Consolidated Mining Co | | 5 | | | |
| Kennebec Daily Journal | | 1 | | | |
| Kennebec Light and Heat Co | | 4 | | | |
| Kennebunk and Kennebunkport Railroad | | 2 | | | |
| Kennebunker | | 1 | | | |
| Kennecott Copper Co | | 14 | | | |
| Kennedy Furniture Co | | 3 | | | |
| Kennedy Mining and Milling Co | | 2 | | | |
| Kennesaw Paper Co | | 8 | | | |
| Kenneth Divide Mining Co | | 5 | | | |
| Kenney IL Gazette-Herald | | 1 | | | |
| Kennicott Brothers Co | | 2 | | | |
| Kennicott Water Softener Co | | 3 | | | |
| Kennon Coal and Mining Co | | 2 | | | |
| Kennywood Racing Coaster Co | | 2 | | | |
| Kenosha Gas and Electric Co | | 6 | | | |
| Kenosha Gas Electric Light and Fuel Co | | 2 | | | |
| Kenosha Home Telephone Co | | 10 | | | |
| Kenosha Maroons | | 21 | | | |
| Kensington Engine Works | | 3 | | | |
| Kensington National Bank | | 17 | | | |
| Kensington Trust Co | | 26 | | | |
| Kent County Savings Bank | | 3 | | | |
| Kent County Street Railway | | 3 | | | |
| Kent Iron Co | | 3 | | | |
| Kent News | | 1 | | | |
| Kent Northern Railway | | 1 | | | |
| Kent Placer Gold Mining Co | | 3 | | | |
| Kenton Gas and Electric Co | | 5 | | | |
| Kenton OH Press | | 2 | | | |
| Kenton Savings Bank | | 1 | | | |
| Kentuck Mining Co of Nevada | | 3 | | | |
| Kentucky Agriculture Experiment Station | | 5 | | | |
| Kentucky and Indiana Bridge Co | | | | | |
| Kentucky and Indiana Terminal Railroad | | 5 | | | |
| Kentucky and South Atlantic Railway | | 4 | | | |
| Kentucky Distilleries and Warehouse Co | | 7 | | | |
| Kentucky Electric Co | | 13 | | | |
| Kentucky Law Reporter | | 2 | | | |
| Kentucky National Bank of Louisville | | 2 | | | |
| Kentucky State Journal | | 1 | | | |
| Kentucky Title Co | | 2 | | | |
| Kentucky Union Co | | 7 | | | |
| Kentucky Union Railway | | 6 | | | |
| Kentucky Wagon Manufacturing Co | | 13 | | | |
| Kentucky-Douglas Mining Co | | 4 | | | |
| Kenwood Bridge Co | | 3 | | | |
| Kenwood Hotel Co | | 4 | | | |
| Kenwood Storage and Transfer Co | | 2 | | | |
| Keokee Consolidated Coke Co | | 9 | | | |
| Keokuk and Des Moines Railroad | | 8 | | | |
| Keokuk and Western Railroad | | 10 | | | |
| Keokuk Electric Street Railway and Power Co | | 3 | | | |
| Keokuk Gas and Electric Co | | 2 | | | |
| Keokuk Gas Light and Coke Co | | 2 | | | |
| Keokuk Westerns | | 11 | | | |
| Keokuk, Fort Des Moines and Minnesota Railroad | | 14 | | | |
| Keokuk, Mount Pleasant and Muscatine Railroad | | 26 | | | |
| Keowee Courier | | 3 | | | |
| Kepler Warehouse Co | | 2 | | | |
| Kerckhoff-Cuzner Mill and Lumber Co | | 13 | | | |
| Kerr Steamship Co | | 3 | | | |
| Kerr Thread Co | | 5 | | | |
| Kershaw Mining Co | | 2 | | | |
| Kershaw SC Era | | 1 | | | |
| Kester Electric Co | | 5 | | | |
| Ketterlinus Lithographic Manufacturing Co | | 5 | | | |
| Kewanee Boiler Co | | 2 | | | |
| Kewanee Gas Light and Coke Co | | 3 | | | |
| Kewanee IL Star-Courier | | 4 | | | |
| Kewanee National Bank | | 1 | | | |
| Kewanee Rolling and Pipe Mill Co | | 2 | | | |
| Kewaunee, Green Bay and Western Railroad | | 10 | | | |
| Keweenaw Land Association | | 4 | | | |
| Key City Gas Co | | 10 | | | |
| Key West Gas and Electric Light Co | | 3 | | | |
| Keyport | | 1 | | | |
| Keyport NJ Enterprise | | 1 | | | |
| Keyport NJ Weekly | | 1 | | | |
| Keyser Electric Light Co | | 9 | | | |
| Keystone Amusement Co | | 2 | | | |
| Keystone Bank of Pittsburgh | | 2 | | | |
| Keystone Bridge Co | | 4 | 1 | 🚂 | |
| Keystone Bronze Co | | 4 | | | |
| Keystone Commercial Co | | 4 | | | |
| Keystone Consolidated Mining and Milling Co | | 3 | | | |
| Keystone Consolidated Mining Co | | 7 | | | |
| Keystone Copper Mining Co | | 6 | | | |
| Keystone Divide Mining Co | | 7 | | | |
| Keystone Driller Co | | 5 | | | |
| Keystone Drop Forge Works | | 4 | | | |
| Keystone Film Co | | 25 | | | |
| Keystone Furnace Co | | 3 | | | |
| Keystone Furnace Construction Co | | 2 | | | |
| Keystone Hair Insulator Co | | 3 | | | |
| Keystone Horse Shoe Co | | 3 | | | |
| Keystone Iron and Steel Co | | 2 | | | |
| Keystone Iron Works | | 12 | | | |
| Keystone Laundry Co | | 5 | | | |
| Keystone Mining Co of Utah | | 10 | | | |
| Keystone Mutual Fire Insurance Co | | 9 | | | |
| Keystone National Bank of Pittsburgh | | 12 | | | |
| Keystone Oil and Manufacturing Co | | 3 | | | |
| Keystone Post Card Co | | | | | |
| Keystone Ptyhian | | 2 | | | |
| Keystone Saw, Tool, Steel, and File Works | | 2 | | | |
| Keystone State Telephone and Telegraph Co | | 4 | | | |
| Keystone Telephone Co of Philadelphia | | 13 | | | |
| Keystone Type Foundry | | 4 | | | |
| Keystone Wire Matting Co | | 3 | | | |
| Khedivial Co | | 5 | | | |
| Kidder Lumber Co | | 4 | | | |
| Kier Fire Brick Co | | 5 | | | |
| Kilbourne and Jacobs Manufacturing Co | | 9 | | | |
| Killeen TX Herald | | 2 | | | |
| Killefer Manufacturing Co | | 6 | | | |
| Killingly Electric Light Co | | 3 | | | |
| Killmaster Railroad | | 5 | | | |
| Kilts and Jackson Co | | 5 | | | |
| Kimball and Chappell Co | | 3 | | | |
| Kimball Mining Co | | 3 | | | |
| Kimberly Consolidated Mines Co | | 7 | | | |
| Kimberly Shipper Mining Co | | 5 | | | |
| Kimble Glass Co | | 3 | | | |
| Kindergarten Magazine | | 1 | | | |
| Kindergarten Review | | 3 | | | |
| Kinderhook and Hudson Railroad | | 4 | | | |
| Kindl Car Truck Co | | 5 | | | |
| King and Andrews Co | | 3 | | | |
| King and Queen Copper Co | | 4 | | | |
| King and Queen Mining Co | | 4 | | | |
| King Brothers | | | | | |
| King Copper Co | | 3 | | | |
| King David Co | | 6 | | | |
| King Edward Silver Mines | | 5 | | | |
| King Island Scheelite Co | | 3 | | | |
| King James and Co | | 9 | | | |
| King Mining Co | | 2 | | | |
| King Printing Co | | | | | |
| King Solomon Copper Mining Co | | 7 | | | |
| King Solomon Tunnel and Development Co | | 9 | | | |
| King William Mining Co | | 4 | | | |
| King, Collie and Co | | 9 | | | |
| King-Brand Mining Co | | 10 | | | |
| King-Crowther Co | | 10 | | | |
| Kingdon Mining, Smelting and Manufacturing Co | | 3 | | | |
| Kingman Brothers | | | | | |
| Kingman City Street Railway | | 4 | | | |
| Kingman Texas Implement Co | | 14 | | | |
| Kings County Bank of Brooklyn | | 11 | | | |
| Kings County Elevated Railway | | 13 | | | |
| Kings County Fire Insurance Co | | 14 | | | |
| Kings County Mortgage Co | | 19 | | | |
| Kings County Refrigerating Co | | 8 | | | |
| Kings County Savings Institution | | 16 | | | |
| Kings Model Laundry Co | | 4 | | | |
| Kings Mountain Railroad | | 8 | | | |
| Kings NC Mountain Reformer | | 2 | | | |
| Kings Quicksilver Mining Co | | 3 | | | |
| Kingsbaker Brothers Co | | 11 | | | |
| Kingsbury Power Co | | 3 | | | |
| Kingsley, Mason and Collins Co | | 14 | | | |
| Kingston and Pembroke Iron Mining Co | | 7 | | | |
| Kingston and Pembroke Railway | | 21 | | | |
| Kingston City Railroad | | 5 | | | |
| Kingston News Service | | | | | |
| Kingston Savings Bank | | 2 | | | |
| Kingston Street Railroad | | 3 | | | |
| Kingston Trust Co | | 6 | | | |
| Kingstree County SC Record | | 1 | | | |
| Kinley Manufacturing Co | | 2 | | | |
| Kinloch Long Distance Telephone Co | | 18 | | | |
| Kinloch-Bloomington Telephone Co | | 8 | | | |
| Kinmundy IL Express | | 3 | | | |
| Kinney-Rodier Co | | 2 | | | |
| Kinsella Co | | 3 | | | |
| Kinsella Glass Co | | 3 | | | |
| Kinsella Hat Co | | 8 | | | |
| Kinsley Bank of Kinsley | | 1 | | | |
| Kinsley Development Co | | 6 | | | |
| Kinsman National Bank | | 1 | | | |
| Kinston and Carolina Railroad | | 6 | | | |
| Kinston NC Free Press | | 1 | | | |
| Kinzua and Tiona Railroad | | 4 | | | |
| Kiowa and Camanche Expedition | | 9 | | | |
| Kiowa County KS Signal | | 2 | | | |
| Kirby Carpenter Co | | 2 | | | |
| Kirby Instrument Co | | 4 | | | |
| Kirchner Supply Co | | 7 | | | |
| Kirkelig Samler | | 2 | | | |
| Kirkland IL Enterprise | | 3 | | | |
| Kirkland Iron Co | | 2 | | | |
| Kirkland Lake Exploration | | 4 | | | |
| Kirkland Lake Gold Mining Co | | 5 | | | |
| Kirkland Lake Proprietary | | 5 | | | |
| Kirkland Realty Co | | 3 | | | |
| Kirkland-Porphyry Gold Mines | | 6 | | | |
| Kirwan Electrical Station Indicator Co | | 4 | | | |
| Kirwin KS Independent | | 2 | | | |
| Kishacoquillas Valley Railroad | | 12 | | | |
| Kissena Park Co | | 7 | | | |
| Kitchener Gold Mining Co | | 5 | | | |
| Kitchigami Gold Development Co | | 4 | | | |
| Kitsalis Mountain Copper Co | | 5 | | | |
| Kittanning Brewing Co | | 2 | | | |
| Kittanning Brick and Fire Clay Co | | 4 | | | |
| Kittanning Clay Manufacturing Co | | 3 | | | |
| Kittanning Clay Products Co | | 5 | | | |
| Kittanning Coal and Coke Co | | 3 | | | |
| Kittanning Gas Co | | 2 | | | |
| Kittanning Iron and Steel Manufacturing Co | | 3 | | | |
| Kittanning Telephone Co | | 8 | | | |
| Kittie Lane Gold Mining Co | | 3 | | | |
| Kittimac Mines Co | | 5 | | | |
| Klein Brothers Co | | 9 | | | |
| Klein Realty Co | | 3 | | | |
| Klein-Norton and Co | | 21 | | | |
| Klein-Simpson Fruit Co | | 25 | | | |
| Klink, Bean and Co | | 10 | | | |
| Klondike Imperial Divide Mining Co | | 3 | | | |
| Klondyke-Portland Mines Co | | 5 | | | |
| Klutz Furniture Co | | 5 | | | |
| Knega Co | | 5 | | | |
| Knickerbocker Ice Co | | 29 | | | |
| Knickerbocker Insurance Co of New York | | 12 | | | |
| Knickerbocker Mutual Liability Insurance Co of New York | | 16 | | | |
| Knickerbocker Press | | 7 | | | |
| Knight and Leonard | | | | | |
| Knight Copper Co | | 7 | | | |
| Knight Tire and Rubber Co | | 5 | | | |
| Knights Deep | | 2 | | | |
| Knights of Honor Reporter | | 1 | | | |
| Knitted Fabrics Co | | 3 | | | |
| Knob Hill Mining Co | | 8 | | | |
| Knott and Harker Co | | 4 | | | |
| Knotwell Iron Co | | 2 | | | |
| Knowlton Danderine Co | | 3 | | | |
| Knox and Lincoln Railroad | | 14 | | | |
| Knox Automobile Co | | 11 | | | |
| Knox County ME Historical and Genealogical Magazine | | 1 | | | |
| Knox Electric Co | | 2 | | | |
| Knox Hat Manufacturing Co | | 10 | | | |
| Knox Motors Co | | 3 | | | |
| Knox Pressed and Welded Steel Co | | 9 | | | |
| Knoxville and Augusta Railroad | | 2 | | | |
| Knoxville and Bristol Railway | | 9 | | | |
| Knoxville and Kentucky Railroad | | 12 | | | |
| Knoxville Car-wheel Co | | 4 | | | |
| Knoxville Gas Light Co | | 3 | | | |
| Knoxville IA Journal | | 1 | | | |
| Knoxville Land Improvement Co | | 3 | | | |
| Knoxville Railway and Light Co | | 11 | | | |
| Knoxville Street Railroad | | 4 | | | |
| Knoxville TN Evening Sentinel | | 2 | | | |
| Knoxville TN Journal | | 1 | | | |
| Knoxville TN Tribune | | 2 | | | |
| Knoxville Water Co | | 4 | | | |
| Knudtson Manufacturing Co | | 5 | | | |
| Kodak Co | | 9 | | | |
| Koenig and Gamer Furniture Co | | 2 | | | |
| Kohinoor Zinc Co | | 4 | | | |
| Kokomo Gas Light and Coke Co | | 2 | | | |
| Kokomo IN Dispatch | | 2 | | | |
| Kokomo Steel and Wire Co | | 9 | | | |
| Kolb Brothers and Hulsman Co | | 3 | | | |
| Kolts Ice and Cold Storage Co | | 5 | | | |
| Kootenail Power Co | | 4 | | | |
| Kootenay Bonanza Mines | | 5 | | | |
| Kops Brothers Co | | 2 | | | |
| Kosmos | | 1 | | | |
| Kostakos Brothers Ice Cream and Candy Co | | 2 | | | |
| Kraemer Art Co | | | | | |
| Krause Safe Deposit Co | | 3 | | | |
| Kroeschell Brothers Co | | 3 | | | |
| Kroeschell Brothers Ice Machine Co | | 5 | | | |
| Kroger Grocery and Baking Co | | 9 | | | |
| Kromona Mining and Smelting Co | | 5 | | | |
| Krueger-Mills Mining Co | | 2 | | | |
| Krug Gold and Copper Mining Co | | 3 | | | |
| Krug Sand Co | | 4 | | | |
| Kuh, Nathan and Fischer Co | | 3 | | | |
| Kuhn and Brother Co | | 6 | | | |
| Kuntz Remmler Co | | 2 | | | |
| Kyle Co | | | | | |
| Kymulga and Coosa River Railroad | | 5 | | | |
| Kyshtim Co | | 6 | | | |
Our Family Tree
