Typescript copies of Gould Correspondence, [1900, 1850, 1835, 1848?, 1861, 1862, 1837, 1838, 1841], Box: 1, Folder: 13. 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/204294 Accessed May 27, 2024.