Arthur Stein (activist)
Arthur Stein was an American union leader, co-founder of the United Federal Workers of America (UFWA), and some-time member of the Communist Party USA who led communist cells within the US federal government during the later 1930s and into the 1940s. == Background == Arthur Stein's father Charles came from the shtetl of Mazritch (Międzyrzec Podlaski? ) in Poland.