, 1940 Wolff appeared before the
House Un-American Activities Committee to defend VALB (Veterans of the Abraham Lincoln Brigade) from being banned as a
Communist front organization. His explanation for his actions owed to his ancestry: "I am Jewish, and knowing that as a Jew we are the first to suffer when fascism does come, I went to Spain to fight against it." According to historian Peter Carroll: When Congress passed the McCarran Act in 1950, obliging all designated subversive organizations to register with the federal government and creating heavy penalties for leaders who refused to cooperate, the entire executive committee of the VALB resigned in 1950. In its place, two Lincoln veterans stepped forward: Wolff became the National Commander;
Moe Fishman became the Executive Secretary/Treasurer... However, newspaper accounts indicate Wolff was first elected National Commander in 1939. He was succeeded by fellow Lincoln Battalion commander
Steve Nelson in 1963. Wolff also battled fiercely for civil rights and against the
Vietnam War. He even offered the services of the aging veterans of the Lincoln Brigade to the North Vietnamese leader,
Ho Chi Minh, who declined them. Later, Wolff campaigned against
apartheid in
South Africa, and raised money for ambulances in
Sandinista-ruled
Nicaragua in the 1980s, personally delivering twenty of them. Wolff completed two autobiographical novels,
A Member Of The Working Class (published 2005) about his early life in New York, and
Another Hill (published 1994) about his communist and Spanish experiences; he began a third book,
The Premature Anti-Fascist, describing his experiences after leaving Spain and during World War II, but did not finish it before his death. ==Personal life==