Biography
C. Mattson was the Hennepin County Central Committee treasurer and was jailed for failure to register, according to the Minneapolis report.
The Minneapolis report identifies C.Mattson as HennepinCounty CentralCommittee treasurer, jailed under$5,000bail for failure to register. No initial is expanded. Actual arrest is established; no complete actual-service total is inferred. Source: https://www.marxists.org/history/usa/pubs/isr/v18n01-jul-1917-ISR-riaz-ocr.pdf#page=15
