File containing biographical materials on Marion Greenwood Bidder compiled by Dr Joan Mason in the course of writing a DNB article on M G B, including the following: draft of the article; final article; DNB sources sheet; list of publications by M G B; and information sheet giving names, dates, place of birth etc of M G B and her parents and husband; together with covering letter from J M. File also contains Girton College Register entry for M G B.