Biography
Markowitz was briefly arrested with knitgoods union organizer Rapoport at Vanity Knitting Mills, 140 West21st Street, New York. Demonstrators forced the policeman to free them. Only a surname is printed. Source: https://marxists.architexturez.net/history/usa/pubs/dailyworker/1931/v08-n251-NY-oct-19-1931-DW-LOC.pdf#page=2