Jonas Oscar Backlund papers, 1893-1951, MSS-Bio-8. The History Center: Archives of Bethel University and Converge.
Jonas Oscar Backlund papers, 1893-1951, MSS-Bio-8. The History Center: Archives of Bethel University and Converge. https://bethelarchives.libraryhost.com/repositories/2/resources/84 Accessed November 23, 2024.