Harvey Groth Documents, Collection ID-0056, Box: Gro - Gu, Folder: Groth. Concordia Historical Institute.
Harvey Groth Documents, Collection ID-0056, Box: Gro - Gu, Folder: Groth. Concordia Historical Institute. https://concordiahistoricalinstitute.libraryhost.com/repositories/2/resources/3919 Accessed October 18, 2024.
