Typescript copies of Gould Correspondence, [1868, 1847, 1843, 1840, 1839, 1838, 1834, 1833], Box: 1, Folder: 18. 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/204299 Accessed May 19, 2024.