After the war, with the campus population swelling with returning veterans on the GI Bill, renewed interest in the LID began to be felt at the grassroots.
[1] Forty delegates from twelve schools attended the SLIDS first official post-war convention in April 1947 at the Labor Temple in New York.
[4] The SLIDs second official post-war convention was held in December 1947 at Wayne State University in Detroit, in conjunction with a conference on "Community Sources of Prejudice".
[6] Because of the escalating Cold War abroad and the dramatic rise and decline of the Henry Wallace Progressive movement at home, the SLID canceled its 1949 convention.
They also began to co-sponsor a lecture series with the Young Peoples Socialist League and Students for Democratic Action called "Conflicting Ideologies of Our Time" which featured such speakers as Daniel Bell, Aaron Levenstein and Ruth Fischer.
Through these efforts the SLID was able to maintain an active presence on several important campuses, including Antioch, Oberlin, Harvard and Wayne, but the organization was still in decline.
Bogdan Denitch, a Shachtmanite member of YPSL, organized a "Red Caucus" within SLID and took control of the CCNY Evening Session chapter.
[11] The fortunes of the group began to turn around in the late 1950s when Al Haber joined the SLID chapter at Ann Arbor.
[12] SLID was represented at the founding convention of the National Student Association at Madison, Wisconsin in September 1948, and remained affiliated through the 1950s.
According to Andre Schiffrin, leader of the Yale chapter and later SLID president, none of the SLIDers were aware of that groups ties to the CIA.