| Description | Includes:
-two letters and a black and white photograph exchanged between Samson and Letitia Simpson, dated 24 and 25 November 1952, concerning the attribution of an unidentified picture
-ten letters exchanged between Samson, Letitia Simpson, and C.K. Adams, National Portrait Gallery, dated 11 December 1953-14 January 1954, concerning the identity of a sitter
-seven letters exchanged between Samson and Letitia Simpson, dated 3 October 1956-25 January 1957, concerning the research of various artists and pictures |