Biography
Fred Bamman was an IWW member from Portola. Fred Bamman received a four-year prison sentence, which he served in San Quentin from October 29, 1923, until his term expired.
The International Labor Defense holiday roster in the December 29, 1925 Daily Worker lists this prisoner, printed as Fred Bamman, at San Quentin California. Its printed identifier is 38531; 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
The December 17, 1924 Daily Worker political-prisoner subscription roster individually lists Fred Bamman at San Quentin with historical prisoner number 38531. The original printed name and row alignment were checked. This is an institutional identifier, not a federal BOP number. No custody endpoints or duration are inferred.
Daily Worker, December17,1924, original page5 political-prisoner roster.
The March 20, 1924 Daily Worker, page 3, publishes April 8 as the birthday of Fred Bamman, individually identified by existing prisoner number 38531. No birth year is supplied, so no complete birthdate or age is invented. This contemporary month-and-day birthday detail is preserved as attributed reporting. Original enlarged print was checked; OCR misreads of the identifiers were rejected.