Author
Socialist Labor Party
11
Socialist Party (U.S.)
10
Debs, Eugene V. 1855-1926
7
Hillquit, Morris, 1869-1933
7
Vaszily, Tivadar
6
Ameringer, Oscar, 1870-1943
4
Bray, John Francis, 1809-1897
4
Grenell, Judson
4
Hass, Eric
4
Labadie, Jo, 1850-1933
4
Noyes, John Humphrey, 1811-1886
4
Sinclair, Upton, 1878-1968
4
Socialistic Tract Association
4
De Leon, Daniel, 1852-1914
3
Pepper, John
3
Basky, Lajos
2
Berger, Victor L., 1860-1929
2
Buhle, Paul, 1944-
2
Cannon, James Patrick, 1890-1974
2
Chaplin, Ralph, 1887-1961
2
Currlin, Albert
2
Ely, Richard Theodore, 1854-1943
2
Gorelick, Joseph
2
Industrial Workers of the World
2
Italian Socialist Federation
2
Izsák, Sándor
2
Nearing, Scott, 1883-1983
2
Petersen, Arnold, 1885-1976
2
Prūseika, Leonas, 1887-1961,
2
Ries, W. F. 1855-1944
2
Schlüter, Hermann, -1919
2
Shapiro, Morris
2
Silver, Adolph
2
Simons, A. M. 1870-1950
2
Socialistic Labor Party (U.S.)
2
Somogyi, Mariska
2
Spargo, John, 1876-1966
2
Spies, August Vincent Theodore, 1855-1887
2
Testi, Arnaldo
2
Tucker, Irwin St. John, 1886-1982
2
Ugrik, Géza
2
Warburg, James P. 1896-1969
2
Wilshire, Gaylord, 1861-1927
2
Workmen's Circle (U.S.) Philadelphia District Educational Department
2
Ameringer, Oscar, 1870-1942
1
Ameringer, Oscar, 1870-1943,
1
Amter, I. 1881-
1
Amter, I. 1881-1954
1
Anderson, Paul Herbert, 1916-
1
Ansari, Maboud
1
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