Additional Mary Sheldon Barnes papers are housed at the Penfield Library Special Collections, State University of New York at Oswego. The papers of Earl Barnes, the Sheldon Family, and Mary's four siblings are also in the Penfield Library.

Earl Barnes' papers (18 linear feet) and some Sheldon family papers were transferred to the State University of New York at Oswego Special Collections where the papers of the Sheldon family are also held.