MASON, William Ernest, 1850-1921



Courtesy U.S. Senate Historical Office

Guide to Research Collections

Chicago Historical Society
Chicago, IL
Papers: 1898, 1902. 2 letters.


Knox College
Seymour Library
Galesburg, IL
Papers: 2 letters (June 27, 1892; November 28, 1894) in Post family papers, 1857-1895; and 1 letter (November 16, 1899) in Seymour autograph collection, 1750-1945.


New-York Historical Society
New York, NY
Papers: No date. 1 letter.