Creator
- A La Vieille Russie (Firm)1
- A.G. Spalding & Bros1
- Aaron family1
- Academy of Sciences and Fine Arts1
- Ackerson, John Thaddeus, 1898-19751
- Adams, John N., Jr. (John Newton)1
- Adams, John Quincy, 1767-18481
- Adamston Flat Glass Company1
- Agnew, Ella G., 1871-19581
- Ajax Fire Engine Works1
- Akers, Lilly & Ellison Families1
- Alan Wofsy Fine Arts1
- Albree, John1
- Albright, Erbie Claire, 1897-19641
- Alderman, Edwin Anderson, 1861-193123