Student, American Academy Fine Arts, Chicago, 1939—1940. Student, Art Institute, Chicago, 1940—1942. Student, Institute Design, Chicago, 1946—1950.
Doctor of Fine Arts (honorary), Chicago Academy Fine Arts, 1973. Doctor of Fine Arts (honorary), Lake Forest College, 1977. Doctor of Humane Letters (honorary), Loyola University, 1985.
Private practise, Chicago, since 1939, 1960. With Life, Look, Sports Illustrated, Fortune, New York Times, Chicago Tribune, Chicago Sun Times, United States Catholic, Chicago Magazine. Board directors Lake Forest High School.
Served to Second lieutenant United States Air Force, 1942-1945.
(Book by McMahon, Franklin)
Member of Arts Club Chicago, Artists Guild Chicago (honorary), Society Typographical Arts (honorary).
Married Irene Mary Leahy, July 28, 1945. Children: William Franklin, Mark, Mary, Deborah, Patrick, Hugh, Margot, Michelle, Michael.