Biography
Frank Martin, preacher at the Baptist Church of the Ages, is individually reported arrested and charged with criminal syndicalism in the May 21 Harlan dispatch during the miners’ conflict. The source does not give an exact arrest day, disposition or release. He is not merged with the separately recorded Salt Lake City relief demonstrator arrested in August 1935 without an identity bridge. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1931/v08-n124-NY-may-23-1931-DW-LOC.pdf#page=1
Portelli explicitly identifies the Baptist pastor as jailed for criminal syndicalism.