Typescript copies of Gould Correspondence, [1894, 1958, 1978, 1860, 1845, 1841, 1850, 1834, 1854, 1861, 1855, 1835, no date], Box: 1, Folder: 8. 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/204289 Accessed May 19, 2024.