Names
- Herbert Baxter Adams1
- Hermansville and Western Railway Company.1
- Hersey Gravel Company.1
- Hill, Robert Thomas, 1858-1941.1
- Hobart and Manistee River Rail Road Company.1
- Hollander, Jacob Harry, 1871-1940.1
- Hopkins Manufacturing Company.1
- Hopkins, Albert J. (Albert Jarvis), 1846-1922.1
- Horning & Hart.1
- Houghton, Chassell & Southwestern Railroad Company.1
- Houston & Texas Central Railway Company.1
- Houston and Shreveport Railroad Company.1
- Houston, East and West Texas Railway.1
- Hovey & McCracken.1
- Hull, Charles Henry, 1864-1
- Hutchins, Harry B. (Harry Burns), 1847-1930.1
- Illinois Tunnel Company.1
- International & Great Northern Railroad.1
- Interstate Commerce Commission.1
- Iowa Central Railway Company.1