1. U.S. Penitentiaries [electronic resource] : hearings before the United States House Committee on Expenditures in Department of Justice, Sixty-Second Congress, second session, on May 14, 1912. United States. Congress. House. Committee on Expenditures in the Department of Justice Washington : U.S. G.P.O., 1912. Book Online
2. U.S. Penitentiaries [electronic resource] : hearings before the United States House Committee on Expenditures in Department of Justice, Sixty-Second Congress, second session, on June 13-15, 17-19, 24, July 1, 1912. United States. Congress. House. Committee on Expenditures in the Department of Justice Washington : U.S. G.P.O., 1912. Book Online
3. Register of U.S. commissioners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1919. Book Online
4. Annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1916-1917. Book Online
5. Annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1915-1916. Book Online
6. Annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1914-1915. Book Online
7. Annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1913-1914. Book Online
8. Annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1912-1913. Book Online
9. Ninth annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1918-1919. Book Online
10. Eighth annual report of Boards of Parole for U.S. prisoners [electronic resource]. United States. Department of Justice. Office of the Attorney General [Washington] : GPO, 1917-1918. Book Online