Historical Epidemiology of Smallpox in Aland, Findland: 1751-1890 by James H. Mielke, et. al, Box: 5, Folder: 22. Personal papers of John T. Alexander, PP 46. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/221534 Accessed February 18, 2025.