Typescript copies of Gould Correspondence, [year? 1853, 1834, 1835, 1836], Box: 1, Folder: 5. Sauer's Gouldiana Research about John Gould and other papers, MS 304. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/204286 Accessed May 19, 2024.