She was the manager of the history department at the Milwaukee West Side High School .
Gertrude Hull ( November 16 , 1866 -- March 22 , 1947 ) was a teacher of history for over 40 years at the Milwaukee school system .
Gertrude Hull was the teacher of the history department at the Milwaukee West Side High School .
Gertrude Hull ( November 16 , 1866 -- March 22 , 1947 ) was a teacher of history for over 40 years at the Milwaukee school system .