In Muscatine on Wednesday, April 25, 1951, Dale wrote, “Worked 8 to 4:30. River higher, 20.5 feet. Cavanaugh, Arth, Arms and I working. Warm & cloudy. Pay day. Arth and Cavanaugh here in evening for television.” Those were co-workers. Above: television stations would show a ‘test pattern’ when not broadcasting programs – this was black and white TV, of course.