The Intelligencer July 16, 1917 (page 3)
“Aeroplane Mail Service. As an evidence of the possibilities of aerial navigation in peace times the delivery of mail in Belleville yesterday may be taken as the forerunner of future competition by sky skimmers with railways and ships in transporting passengers and mail.
A number of aviators from Camp Mohawk came up Saturday and were guests over Sunday at the Hotel Quinte. Their letters arriving at the Camp post office after their departure were tied up in a bundle and Sunday morning brought to the city by an aviator who circled about until directly over the Hotel Quinte when he dropped the letters to his comrades awaiting below. His aim was good and the mail delivery was perfect.”
First World War Belleville 