Air Mail Service Began:
September 30, 1920
Air Mail Service Ended:
December 24, 1923
Assignments:
College Park, Maryland
Oct 16, 1920 – Cheyenne, Wyoming
April 1, 1923 – North Platte, Nebraska
Oct 16, 1920 – Cheyenne, Wyoming
April 1, 1923 – North Platte, Nebraska

- Courtesy of the National Air and Space Museum, Smithsonian Institution
"Dinty" Moore was killed flying the mail on Christmas Eve, 1923. He encountered a stiff headwind at 1,000 feet on his North Platte, Nebraska to Cheyenne, Wyoming run. He dropped to 100 feet where the air was calmer. A Union Pacific crew watched as his airplane neared some low bluffs at the end of the valley. Instead of rising, the airplane sank and plowed into the slope. The propeller cut a ridge in the earth as the de Havilland careened across the ground before collapsing 100 feet away from the crash spot.
This clipping from the December 28, 1923 Salt Lake Telegram reports "Dinty" Moore's tragic crash.