Names
- Ann Arbor Railroad Company.1
- Ann Arbor Street Railway Company.1
- Ann Arbor and Ypsilanti Electric Railway Company.1
- Ann Arbor no. 3 (Car ferry)1
- Anspach, Charles Le Roy, 1895-1
- Antrim Iron Company.1
- Arcadia & Betsey River Railway Company.1
- Artiaga, Santiago, 1878-1962.1
- Atchison, Topeka, and Santa Fe Railway Company.1
- Atlantic and Gulf Railroad Company.1
- Au Sable & Northwestern Railway Company.1
- Backus, Standish.1
- Bacon, Mark Reeves, 1852-1941.1
- Baird, Charles, 1870-1944.1
- Baits, Vera Burridge, 1892-1963.1
- Bald, F. Clever (Frederick Clever), 1897-1970.1
- Baltimore and Ohio Railroad Company.1
- Bates, Henry Moore, 1869-1949.1
- Bath & Hammondsport Railroad.1
- Beal, Junius E. (Junius Emery), 1860-1942.1