He obtained his Ph. D. in Bacteriology and Chemistry from Yale University in 1938 .
Porter graduated from Iowa State University , with B.S. and M.S. degrees in Bacteriology in 1933 and 1935 .
Porter obtained Porter 's Ph. D. Bacteriology Bacteriology and Chemistry from Yale University in 1938 .
Porter graduated from Iowa State University , with B.S. and M.S. degrees in Bacteriology in 1933 and 1935 .