Topographic map. Wellfleet, MA 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic. [transferred to Invertebrate Zoology Division, Aug. 2011], 1958 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Copeland MacClintock Archives, 1963-2014MapsMassachusetts.
Twenhofel Notebooks. Cope's plea for the return of the Twenhofel notebooks. Recorded 07 Mar 2013. Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Copeland MacClintock Archives, 1963-2014Oral HistoryMiscellaneous.