He was a native of Martinsville , Illinois who graduated from the Culver Military Academy and the University of Michigan .
Prentiss Porter Douglass ( June 23 , 1887 -- November 9 , 1949 ) was an American football player and coach .
Prentiss Porter Douglass was a football player of Martinsville , Illinois who graduated from the Culver Military Academy and the University of Michigan .
Prentiss Porter Douglass ( June 23 , 1887 -- November 9 , 1949 ) was an American football player and coach .