Letter from Isted, A[mbrose] to Sam Isted, contained 4H:1 when given to Sam Isted, 21 December 1772, Box: 8, Folder: 4H:2. Sotheby Family Papers, MS 4. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/262090 Accessed May 20, 2024.