Franklyn MacCormack (March 8, 1906 – June 12, 1971) was an American radio personality in Chicago, Illinois from the 1930s into the 1970s, including his program, The All Night Showcase. He was also well known as the announcer of the long-running old-time radio serial Jack Armstrong, the All-American Boy.
During his tenure on WGN, MacCormack's show originated at Uphoff's Rotunda Motel and Restaurant in Wisconsin Dells, Wisconsin for two weeks every summer, through the courtesy of local waterski show impresario Tommy Bartlett.
MacCormack became ill during the broadcast of June 12, 1971, and was quickly taken to a hospital. He had, in fact, suffered his second heart attack in a nine-month period, this time fatally, as he died Saturday afternoon. His time slot was initially filled by occasional guest host and staff newscaster Clif Mercer. 2,500 people gathered two days later to honor his passing. Source: