[3] Prior to his election to public office Muhleman served as a bookkeeper, salesman, was manager and co-owner of a farm implement store.
Muhleman was defeated in a surprise upset in 1958 by political veteran and former Illinois State Treasurer, Ora Smith.
In late 1960, Muhleman declared his candidacy for Mayor of Rock Island, Illinois.
He won the February Primary and went on to victory in a tight Mayoral election the following April.
Muhleman's term as Mayor was marked by great cooperation between the city, business, and civic interests.