Names
- Historical Society of Michigan (1874-)1
- Hobart and Manistee River Rail Road Company.1
- Hoover, Herbert, 1874-1964.1
- Hopkins Manufacturing Company.1
- Horner Woolen Company.1
- Horning & Hart.1
- Houghton, Chassell & Southwestern Railroad Company.1
- Hovey & McCracken.1
- Hull, William, 1753-1825.1
- Hunter, Daniel Francis1
- Hutchins, Harry B. (Harry Burns), 1847-1930.1
- Hyatt Regency Dearborn.1
- Illinois Central Railroad Company.1
- Inn at Bay Harbor.1
- International Congress of Women (1915 : Hague, Netherlands)1
- International Union, United Automobile, Aircraft, and Agricultural Implement Workers of America.1
- International Workers of the World1
- J. Alley & Company.1
- J.E. Potts Salt & Lumber Company.1
- Jampel, Emily S.1