About Jacob Waltz [sic], Undated

This collection consists primarily of correspondence, newspaper clippings, maps, photographs, and other materials documenting Sims Ely's search for and research on Arizona's Lost Dutchman Mine and service as city manager of Boulder City (the company town associated with Boulder Dam). Also included are drafts of Sims Ely's writings, materials showing his involvement with the Federal Farm Loan Board, and correspondence addressed to Helen (Ely) Richardson and Northcutt Ely following Sims Ely's death.

Series I: Lost Dutchman Mine houses correspondence, newspaper clippings, maps, notes, and other materials showing Sims Ely's and Jim Bark's research on the Lost Dutchman Mine and such associated personalities as Jacob Walsz, Doc Thorne, and Adolph Ruth (who was murdered in 1931 while searching for the mine). Also included are drafts of Jim Bark's manuscript about the mine, drafts and galleys for Sims Ely's The Lost Dutchman Mine (1953), correspondence addressed to Sims Ely, Northcutt Ely, and Helen (Ely) Richardson about the book, and photographs of the Superstition Mountains.

Series II: Boulder City, Nevada includes photographs, correspondence, newspaper clippings, publications, and other materials documenting Sims Ely's tenure as Boulder City's manager and the construction of Boulder Dam. Also included is a thesis titled Boulder City: Its Legal Background, Its City Plan, and Its Administration by Ray L. Wilbur, Jr.

Series III: Personal, Biographical, and Other Papers consists of correspondence, publications, newspaper clippings, certificates, and other materials documenting the personal lives of Sims Ely, Northcutt Ely, and Helen (Ely) Richardson. Of particular interest are Sims Ely's manuscripts about his life, including My Early Years, Experiences at Phoenix, and Through Eight Decades.