Henkel family. Henkel Family Papers. 1786-1940. Located in: Modern Manuscripts Collection, History of Medicine Division, National Library of Medicine, Bethesda, MD; MS C 291.
Henkel family. Henkel Family Papers. 1786-1940. Located in: Modern Manuscripts Collection, History of Medicine Division, National Library of Medicine, Bethesda, MD; MS C 291. https://findingaids.nlm.nih.gov/repositories/4/resources/1002 Accessed November 30, 2023.
