Names
- Arboretum1
- Arcade Theater1
- Arcadia & Betsey River Railway Company.1
- Architecture Building1
- Argo Dam1
- Argo Mills1
- Argo Mills (Ann Arbor, Mich.)1
- Armbruster1
- Armstrong1
- Armstrong Studio1
- Ashley1
- Atchison, Topeka, and Santa Fe Railway Company.1
- Atlantic & Pacific Tea Company1
- Atlantic and Gulf Railroad Company.1
- Atlantic and Pacific Company1
- Atwell-Hicks.1
- Au Sable & Northwestern Railway Company.1
- Avis1
- Avis Sisters Ice Cream Parlor1
- Ayres, Lewis, Norris, and May.1