Rachel Calder Ashworth family papers and histories contains family histories, biographies, autobiographies, family records, pedigrees and photographs of her pioneer ancestors and their families, many of whom were in Vernal, Utah. Some of the more frequently mentioned families are the Ashworths, the Mentzers, the Hackings, and the Calders. Dated from approximately 1900 to 2015.

Contains physical and digital copies of scrapbooks, photographs, ephemera, and family histories of Edgar Hague Calder and two generations of his ancestors, including his grandfather, David O. Calder, and Edgar's wife, Melba Vance Calder, and two generations of her ancestors. Also includes various books, such as an autograph book, pocketbooks, and photograph books. Dated approximately 1850 to 2005.