Collection consists of 14 handwritten letters, including 12 from Hallidy to his girlfriend Maggie, one from Maggie to Hallidy, and and a letter from his brother, Bob. Also contains 14 pages from Adam M. Hallidy's diary. The collection is arranged chronologically from 1862 to 1865.

Collection includes original political cartoons from Washington newspapers; lithographic reproductions of other political cartoons; original pen and ink illustrations of civil war stories; scrapbooks containing original political cartoons, lithographic reproductions of cartoons, original sketches, and newspaper clippings; diaries; and loose sketches and photographs. These materials date from 1858-1896.

Lester Frank Ward (1841-1913) has been described by some as the father of American sociology. His contributions to sociology are almost forgotten today, but at one time he was considered to be one of America's leading intellectuals. Collection includes diaries, correspondence, photographs, a scrapbook. and sixty-nine articles written by Lester Frank Ward. The materials range in date from between 1883 and 1919.

Contains diaries, correspondence, research notes, articles, chapters from books, syllabi, exam questions, news clippings, correspondence, original military ballads, illustrations, and photographs range in date from 1936-1990 (bulk 1960-1990) documenting Cunliffe’s career as a scholar of American history.