Typescript copies of Gould Correspondence, [1857, 1858, 1859, 1860, 1861], Box: 1, Folder: 9. 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/204290 Accessed November 24, 2024.