Fonds includes seven series: I. Personal and professional, 1884-1959; II. Business and financial, ca.1910-1959; III. Professional photography, 1900-1955; IV. Writing, 1906-1957; V. Natural history, 1904-1954; VI. Other interests, 1913-1956; VII. Riggall family, ca.1865-1959. Personal and professional series consists of diaries and notes, correspondence and personal papers. Business and financial series consists of guiding and ranching records, gunsmithing, shooting and loading records; and legal and financial records. Professional photography series consists of standard photographs, panoramas, transparencies and textual records;Writing series contains manuscripts, published magazines, book outlines, newspaper articles and letters to the editor;Natural history series contains bird and plant records, and other natural history papers;Other interests series consist of clippings, annotated books and collected material;Riggall family series contains Bert and Dora Riggall family papers and photographs, Williams family photographs, Frederick W. and Fanny Riggall papers and photographs, and Allan Riggall papers and photographs. Negatives and transparencies pertain to Andy Russell as a young man with Bert Riggall.