I thought I hadn't, but I looked back over my old logging magazines and, yep, sometime in the 1970s, I received it. I probably was in O'Fallon, Missouri (St. Louis area) at the time, so it might have been around critical hours.First, I must be the only person in mid-America who hasn't heard WDZ.
On FM, I had heard WDZQ multiple times, and a college friend worked summers there tending the automation. It was one of the few grandfathered FMs in Illinois, but it isn't any more.