Biography
R. Kuilmen was from Eureka. R. Kuilmen received a four-year prison sentence, which he served in San Quentin from April 10, 1923, until his term expired for attending a meeting of the IWW local in Eureka. In June 1924, IWW inmates struck to protest Kuilmen's detention in solitary confinement.
The International Labor Defense holiday roster in the December 29, 1925 Daily Worker lists this prisoner, printed as R. Kuilman, at San Quentin California. Its printed identifier is 37703; this is a prison number or mailing designation, not a year or a custody date. This documents confinement at the roster’s reporting time, without establishing an admission, transfer, release, new conviction or complete duration. Existing independently sourced custody chronology remains separate. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1925/1925-ny/v02b-n297-NYE-dec-29-1925-DW-LOC.pdf#page=5
