Online version of the 1901 edition of Bartlett's Familiar Quotations may be browsed by author (chronologically or alphabetically).

A Collection of Passages, Phrases, and Proverbs Traced to Their Sources in Ancient and Modern Literature compiled by John Bartlett. This tenth edition of 1919 contains over 11,000 searchable quotations and was the first new edition of John Bartlett’s corpus to be published after his death in 1905—the new editor, however, choosing more to supplement than revise the work of the first name in quotations.