Creator
- Ajax Fire Engine Works1
- Aladdin Company1
- Alexander, Andrew1
- Alexander, James2
- Alexander, Louise Houston1
- Alexander, Robert A.1
- Alexander, Robert, Jr.1
- Alexander, Robert, Sr.3
- Alfred I. Du Pont Institute1
- Alfred I. Du Pont School (Talleyville, DE)3
- Alfred I. Du Pont School District1
- Allan, William, 1837-18891
- Allee, J. Frank (James Frank), 1857-19388
- Alleghany Improvement Co., Goshen, Virginia1
- Alleghany Inn, Goshen, Virginia1