Biography
Arrested Saturday July 20, 1929 at the Young Pioneer demonstration against the militarist Boy Scout jamboree, on the Hudson River pier at Fourteenth Street. Pages 1 and 5 name four arrested: Harper, Eisman, Efron/Efren and Silver. District director of the Young Pioneers, seized as he spoke at the pier. He, Murray Silver and Sol Efron appeared before Magistrate Vitale on July 21; the case was adjourned until Thursday. That adjournment is not a verdict or discharge. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1929/1929-ny/v06-n116-NY-jul-22-1929-DW-LOC.pdf
Contemporary original newspaper source; individual page evidence retained in review audit 421. Exact individual custody dates and duration are not inferred from relative dates or collective claims.
