- Arthus, Gotthard, b. 15681
- Ascoli, Max, 1898-19781
- Asher ben Baba1
- Asher ben Yosef1
- Ashton, E. B., 1909-1
- Asimina obovata1
- Askew, Anne, 1521-15461
- Assinboine Indians --Portraits1
- Assiniboine Indians1
- Assiniboine Indians --Pictorial works3
- Assiniboine Indians--Pictorial works2
- Astley, Thomas, d. 17591
- Atahualpa, d. 15331
- Atalanta (Greek mythological character),1
- Atchison, Topeka, and Santa Fe Railway Company1
- Atkyns, Charlotte Walpole, Lady, approximately 1758-1836,3
- Atsina Indians --Pictorial works2
- Auden, W. H. (Wystan Hugh), 1907-19735
- Auditorium Theater (Chicago, Ill.)1
- Augustine, Saint, Bishop of Hippo1
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