Wisconsin State Federation of Labor
Notable WSFL activists
- Victor Berger: editor/publisher of one of the WSFL's two official newspapers, and Socialist Congressman
- Andrew Biemiller: professor, editor, Socialist (later Progressive) legislator, WSFL union organizer (hired to supplement his meagre legislative salary), Democratic Congressman, and union lobbyist
- Frederick Brockhausen: cigar maker, WSFL official and Socialist state legislator
- Charles Burhop: cigar maker, WSFL delegate, and Socialist state legislator
- William Coleman: house painter, union organizer, WSFL board member, and Socialist state legislator
- Arthur Kahn: baker, union activist and organizer, and Socialist state legislator
- Frank Metcalfe: glassblower, WSFL board member, Socialist state legislator and nominee for Governor of Wisconsin
- Henry Ohl, Jr.: WSFL official and Socialist state legislator
- Joseph Arthur Padway: labor lawyer, legal counsel for WSFL, Socialist state senator, and later first general counsel of the American Federation of Labor
- L. W. Rogers: teacher, railway brakeman, union officer and organizer, Socialist political activist, and newspaper editor, one of the founders of the WSFL
- Carl Sandburg: reporter, writer, editor, poet, and WSFL delegate
- George J. Schneider: papermaker, vice-president of the International Brotherhood of Paper Makers, WSFL board member and Republican (later Progressive) Congressman
- James P. Sheehan: cigar maker, WSFL board member, Socialist Milwaukee County Supervisor
- David Sigman: pro-labor Progressive state legislator who was hired as a WSFL staffer to supplement his meagre legislative salary
- Frank J. Weber: seaman, union organizer, first president of the WSFL, and Socialist state legislator