"John Eugene Sass, Ph. D., Assistant professor of botany," is the way the catalogue of Iowa State lists the man known to foresters as "Doc" Sass, or better still as just "Doc."
Ames Forestry Club
Ames Forester: Vol. 22
, Article 17.
Available at: https://lib.dr.iastate.edu/amesforester/vol22/iss1/17