Reverend Mark A. Chamberlin (born 1899) was a Methodist pastor and national officer in the Methodist Federation for Social Action. He hosted the "Religion and Life" program on KBOO radio, Portland, from 1971-1977. Papers include correspondence with KBOO; correspondence regarding the deportation of H.S. MacKay; notes and program materials from conferences attended by Chamberlin; and miscellaneous materials from the Oregon Chapter of the Methodist Federation for Social Action.