Biography
Joseph Arizpe was a Mexican worker arrested at the Los Angeles twelfth-anniversary mass meeting commemorating the Russian Revolution. Page 3 reports that he was out on $1,000 bail. Initially charged with illegal entry, he subsequently faced an accusation of attempting to overthrow the United States government. The International Labor Defense defended him. No precise arrest or bail-release day, verdict or completed duration appears. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1929/1929-nat/v06-n234-NAT-dec-06-1929-DW-Q.pdf
Contemporary original newspaper source; individual page evidence retained in review audit 429. Exact individual custody dates and duration are not inferred from relative dates or collective claims.