- 13 Albumen prints
- 3 Albums
- 1 Alchemists
- 7 Alchemy
- 7 Alcohol
- 14 Alcoholic beverages
- 1 Alcoholics
- 2 Alcoholism
- 1 Alderson & Son
- 1 Aldrich, T. Woolen Factory
- 1 Alessi, Isidoro, 1712-1799
- 1 Alex R. Harper & Bros.
- 1 Alex W. Wister & Son Insurance (Firm)
- 1 Alexa McDonald (Firm)
- 5 Alexander Bros.
- 1 Alexander Schorke (Firm)
- 1 Alexander Young & Co.
- 1 Alexander, Archibald, Rev.
- 1 Alexander, Francesca, 1837-1917
- 1 Alexander, Francis, 1800-1880
- 4 Alexander, H. W.
- 1 Alexander, James B. & Robert M. Cameron Mills
- 56 Alexander, Lloyd
- 1 Alexander, Lucia Gray Swett, d. 1916.
- 10 Alexander, the Great, 356-323 B.C.
- 2 Alexandria Palace Park Co.
- 4 Alexandria, Egypt
- 1 Alfred Bailey (Firm)
- 1 Alfred de Montebello & Co.
- 1 Algebra
- 15 Algeria
- 3 Algiers, Algeria
- 1 Algonquian languages
- 1 Algonquin, Illinois
- 1 Alhambra (Soda fountain)
- 2 Alhambra Theatre
- 1 Ali Baba (fictitious character)
- 1 Aliens in art
- 1 Alisov, Mikhail (Firm)
- 1 Al-Isra'
