Socialist Workers' Federation was created in 1909.
Workers' Socialist Federation was created in 1921.
Workers' Socialist Federation ended in 1924.
Swiss Socialist Federation was created in 1939.
Socialist Federation of Algeria was created in 1908.
Democratic Socialist Federation was created in 1956.
Scottish Socialist Federation was created in 1888.
Free Federation of Workers was created in 1899.
Workers' Socialist League was created in 1975.
Workers' Socialist Organization was created in 1979.
Aruban Workers' Federation was created in 1964.
Syndicalist Workers' Federation was created in 1950.
Jewish Socialist Workers Party was created in 1906.
Workers Socialist Party of Bolivia was created in 1940.