Claim: Joseph Zack Kornfeder, a founding member and top leader of the Communist Party of America who is also known as Joe Zack, was born in Trenčín, Slovakia on March 20, 1898.
Evidence: Joseph Zack Kornfeder
(1898-03-20)March 20, 1898
Trencsén, Austria-Hungary (now Trenčín, Slovakia) Joe Zack, Joseph Zack Kornfedder, A.C. Griffith, J.P. Collins Joseph Zack Kornfeder (1898–1963), sometimes surnamed "Kornfedder" in the press, was an Austro-Hungarian-born American who was a founding member and top leader of the Communist Party of America in 1919, Communist Party USA leader, and Comintern representative to South America (1930-1931) before quitting the Party in 1934.