Letter from Dr. V.K. Volk recommending that in light of a recent outbreak of typhoid fever that Dr. Mudd provide a vaccine to employees who request it, 1947-12-18, Box: 1 - Volk, Vladimir Konstantin Dr., Folder: 3 - Correspondence. Public Health and Hospitals, RG-PUBLIC-HEALTH. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/25995 Accessed December 06, 2025.