Social Democratic Federation of America

The Social Democratic Federation (SDF) was organized in 1936 after the split in the Socialist Party between the Old Guard and the Militants. It was able to attract many of the traditional Socialist Party sources of support and its activities were directed by many prominent Socialist Party members, including August Claessens, Algernon Lee, Leo Meltzer, James Oneal and Louis Waldman. The SDF sought to promote the principles of social democracy and independent political action. In the late 1930's, SDF was associated with the American Labor Party of New York and the People's Party. During the 1940's and early 1950's, SDF's membership and influence declined forcing merger negotiations with the Socialist Party. The merger was affected in 1957.

From the description of Records, 1933-1956. (New York University). WorldCat record id: 17269163

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