F. Kruse * Leo Krzycki, chairman Harry W. Laidler ISS Algernon Lee ISS, SDF Walter Lippman, journalist Jack London ISS Meyer London, Congressman from New York City George R. Lunn, mayor of Schenectady, New York Theresa S. Malkiel Mary Marcy James H. Maurer SDF Jasper McLevy SDF, mayor of Bridgeport, Connecticut David McReynolds SPUSA, peace advocate, SPUSA presidential candidate Herbert M. Merrill, secretary of the SPA-NY, first Socialist New York assemblyman (1912) Walter Thomas Mills Tom Mooney Thomas J. Morgan Gustavus Myers Scott Nearing Reinhold Niebuhr, theologian Santeri Nuorteva Kate Richards O'Hare James Oneal SDF Mary White Ovington, co-founder of the NAACP Joseph Arthur Padway Jacob Panken, New York municipal judge A. Philip Randolph SDF, SDUSA, labor and civil rights leader John Reed *, author Victor Reuther DSOC, labor organizer Walter Reuther, labor organizer Elmer Rosenberg, New York assemblyman 1918 Charles Edward Russell, writer Bayard Rustin SDUSA, civil rights organizer Carl Sandburg, poet Margaret Sanger, advocate of family planning Roland D. Sawyer Edmund Seidel, New York state senator 1921–1922 Clarence Senior Max Shachtman Abraham I. Shiplacoff, NY assemblyman 1916, 1917, 1918 Upton Sinclair ISS, writer, organized End Poverty in California (EPIC) John W. Slayton John Spargo SDL, writer Seymour Stedman Charles P. Steinmetz, physicist A.M. Stirton, publisher of The Wage Slave, candidate for governor in Michigan in 1908 J.G. Phelps Stokes ISSSDL, social reformer Rose Pastor Stokes *, social reformer Maurice Sugar Norman Thomas, peace advocate, Presidential candidate Henry M. Tichenor Hermon F. Titus Gus Tyler, writer and labor leader Ernest Untermann Charles H. Vail Baruch Charney Vladeck Alfred Wagenknecht * Louis Waldman SDF Julius Wayland, publisher of The Appeal to Reason Joseph A. Whitehorn, lawyer, New York assemblyman 1917, 1918 George W. Woodbey, preacher and African-American leader John M. Work Frank P. Zeidler SPUSA, mayor of Milwaukee, SPUSA presidential candidate Main