His participation in arts organizations included his role as a founding
member of Spiral, an association
of African American artists that came together in 1963 to support the civil rights movement; his 1964 appointment as the first art director
of the newly established Harlem Cultural Council, a prominent African American advocacy
group with several hundred
members; and his role in concert with artists Ernest Crichlow and Norman Lewis (with seed money from the Ford Foundation), as a founding
member of Cinque Gallery which supported
young minority artists.