- Austria. Handels-Ministerium1
- Automobile Club of Minneapolis1
- Automobile Club of Saint Paul1
- Automobile Club of Southern California1
- Automobile Club of Western Washington1
- Avery, Carlos, 1868-19311
- Ayde, E. F.1
- Ayres, H. B. (Horace Beemer), 1856-1
- B.A.M. Froiseth (Firm)1
- B.F. Goodrich Company. National Touring Bureau1
- B.F. Goodrich Company. Travel & Transport Bureau.1
- Baarsel, C. van (Cornelius)1
- Bachelder, John B. (John Badger), 1825-18941
- Bacon, G. W. (George Washington), 1830-19211
- Baillieu, Gaspar de1
- Bain, Harry Foster, 1872-1948.1
- Baker, B. (Benjamin), active 1766-18241
- Baker, O. E. (Oliver Edwin), 1883-19491
- Baldwin, Abigail L.1
- Baldwin, Frank M., cartographer.1