Letters, journals, writings, obituaries, and records of Addison Pratt; his wife, Louisa Barnes Pratt; his father, Henry Pratt; and his descendants (1827-1963).

This collection is organized by generation and family name. It begins with the life of Henry Pratt and his immediate family. It then continues with Addison Pratt, Louisa Barnes Pratt, their children, and grandchildren. The collection includes both original letters of correspondence, as well as photocopies and typewritten transcripts of the original documents. (The original correspondence and records of Addison Pratt are in the LDS Archives, Church Historical Department, Salt Lake City, Utah.)

Addison Pratt and Louisa Barnes Pratt were the great-great-grandparents of Maria S. Ellsworth. Addison Pratt was one of the first LDS missionaries sent to the Society Islands in the South Pacific. These papers were collected by S. George Ellsworth in an attempt to preserve Maria's family history. The papers were also used as primary resource material in the writing and editing of three of George's books: The History of Louisa Barnes Pratt, published in 1998; The Journals of Addison Pratt, published in 1990; and Dear Ellen, published in 1974.