J. L. Mueller served as President of the Fort Wayne Daisies from 1947-1949. He was the Lincoln National Life Insurance Company national sales leader for a quarter of a century and served as Past President of the Fort Wayne Basketball Association. He was an ardent golfer and senior champion of the Fort Wayne Country Club. In addition, he served as General Chairman of the Community Chest and was active in the American Red Cross, YMCA, War Bonds, Civic Theatre, and Philharmonic Orchestra activities. He was also a member of the Fort Wayne Chamber of Commerce and was active in many other civic and fraternal organizations.