14 (Spring 2000). Jentz, John B. "Citizenship, Self-Respect, and Political Power: Chicago's Flat Janitors Trailblaze the Service Employees International Union, 1912-1921." Labor's Heritage. 9:1 (Summer 1997). "100 Philosophers." Time. December 27, 1937. "Oscar Nelson, 76, banker and G.O.P. Aid, Dies." Chicago Daily Tribune. April 3, 1951. "Oscar Nelson, 1926-1933." History of the Office. Illinois Comptroller. State of Illinois. No date. Accessed October 1, 2007. "W.F. Quesse, Labor Chief, Dies of Cancer." Chicago Daily Tribune. February 16, 1927. Wren, Thomas. "Horan Succeeds Oscar Nelson As Janitors' Chief." Chicago Daily Tribune. September 4, 1927. 1874 births 1951 deaths Presidents of the Service Employees International Union Auditors of Public Accounts of Illinois State treasurers of Illinois Illinois Republicans Swedish emigrants to the United States American trade unionists of Swedish descent