John Jeffrey

John Carl Jeffrey played a key role in shaping radio in Kokomo, Indiana. A native of Indianapolis, he moved to Kokomo in 1941 to become the sales manager of WKMO Radio. WKMO was known for its commitment to community service, particularly during World War II, when it dedicated much of its programming to religious content and public affairs. The station maintained an inclusive approach, ensuring equal access for all denominations, creeds, races, and sects. Jeffrey’s leadership within WKMO contributed to its influence in the community.

After six years at WKMO, Jeffrey resigned to co-found WIOU Radio in Kokomo. On January 8, 1948, the Federal Communications Commission granted a construction permit to North Central Indiana Broadcasting Company, with Jeffrey serving as General Manager and Vice President. WIOU first aired on July 16, 1948, and quickly expanded its operations. In 1956, the station was sold to Booth-American, though Jeffrey remained general manager. Under his leadership, WIOU increased its daytime power from 1,000 watts to 5,000 watts in 1962. Two years later, he helped launch an FM station, WKMO-FM, which began broadcasting in November 1964.

Beyond station management, Jeffrey was a recognized leader in the broadcasting industry. He was among the key organizers of the Indiana Broadcasters Association and served as its president. Additionally, he was a board member of the National Association of Broadcasters. His influence extended to industry discussions, including moderating panels on radio programming and the future of the medium.

Jeffrey retired in 1972 as general manager but continued working as a consultant and account executive for WIOU-WKMO. In addition to his contributions to radio, he was active in community service, serving as president of the Kokomo Lions Club.

John Carl Jeffrey passed away on September 3, 1980, in Kokomo at the age of 77.

March 2025

Katherine Maners

Indiana Broadcast Pioneers