This biographical summary was created by the Works Progress Administration (WPA) between 1936 and 1939.
Gruber, Tresa, "O'Brien, William (1869 - )" (1937). WPA Biographic Summaries. 940.
Image ID: 10452
Copied from Collections of the Minnesota Historical Society. Volume 14. Minnesota Biographies, 1655-1912, p. 560 by Tresa Gruber