In 1974, as a politburo member of the Puerto Rican Socialist Party, Alfredo Lopez attended the 1974 conference of the New American Movement in Lexington.
Socialist Scholars Conference
Frances Aparicio, Alfredo Lopez and Elias Castro were speakers on the Puerto Rico: Microcosm of Independence Struggle for Culture and Identity panel sponsored by the South End Press at the Tenth Annual Socialist Scholars Conference. The conference was held April 24-26, 1992 at the Borough of Manhattan Community College, New York City
Center for Labor Renewal
In 2009 Alfredo Lopez was listed as an endorser of the Center for Labor Renewal.