Turnbull, George S. Governors of Oregon. Portland: Binfords & Mort., 1959.
Oregon newspapers, October 29 through November 3, 1947.
The Oregon State Archives holds approximately 9.25 cubic feet of records from the office of Governor Snell. These include speeches, proclamations, press releases, correspondence, photographs, extraditions, and related records dating from 1924 through 1947. Additionally, the records of Governor John Hall include a report of the investigation of the plane crash by the federal Civil Aeronautics Board.