Dr. Marvin Sibley, D.D.S.
Photographic portrait of Marvin Sibley, a dentist colleague of Dr. Samuel A. Freeman who was photographed at 42 years old and died at Webster City, Iowa on March 14, 1872.
Contact the History of Medicine Collection, http://library.buffalo.edu/historyofmedicine/
L. Clark, Photographer (Webster City, Iowa), “Dr. Marvin Sibley, D.D.S.,” Digital Collections - University at Buffalo Libraries, accessed August 11, 2020, https://digital.lib.buffalo.edu/items/show/90303.