The Speer Family papers represent four generations of that family, with the bulk of material attributed to the last two generations, especially Robert Elliott Speer and his wife and three of his five children: Emma Bailey, Elliott, Margaret Bailey, and William Speer. The family was active in the Presbyterian Church, serving that institution in a variety of different capacities. The children, in addition to their religious roles, held prominent positions in academic administration. The family's papers primarily consist of the personal papers of the family, although they also contain the professional correspondence of Emma Bailey and Margaret Bailey Speer, both Bryn Mawr College alumnae. This collection, which dates from 1802 to 1982, contains letters, diaries, speeches, publications, awards, and photographs, although the vast majority of the material is the letters between family members.
This collection consists of documents pertaining to and the hand-signed letters of prominent American figures of the early 1920s. Many concern explorer Henry Grant Bryant and the Melville-Bryant Drift Cask Experiment. Other notable persons associated with this collection include Martin van Buren, William Howard Taft, Herbert Hoover, Ulysses S. Grant, and James Buchanan. Additionally, there are two autograph books within the collection.