Biography
Jack was arrested during the September 9, 1930 raid on Portland’s Workers Center.
The Portland report said police raided the Workers Center at 312 Worcester Building on September 9, 1930 and arrested sixteen people attending a Communist Party meeting or reading in the hall. These eight were the second named group, held on vagrancy charges rather than the separate immigration-investigation group. No release date was given. Daily Worker, September 15, 1930, original PDF page 1. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1930/v07-n222-Nat-sep-15-1930-DW-LOC.pdf#page=1
