Memo from B. Lipsner to Army Adjutant General
In this July 3, 1918, memo, U.S. Army Captain Benjamin Lipsner asked the Army to grant his request for a ninety-day leave “for the purpose of installing a Mechanical Maintenance System” for the Post Office Department. Lipsner stated that he believed "his services would be of greater value to the Government during such period in connection with the Aerial Mail Service than in his present duties which are temporarily slack.”
Captain Lipsner assisted Major Reuben Fleet in operating the airmail service between May 15 and August 9, 1918, the period during which the Army operated it for the Post Office Department. Lipsner was eventually hired by Second Assistant Postmaster General Otto Praeger as superintendent of airmail service. The Department began operating all aspects of airmail service on August 12, 1918, under Lipsner's and Praeger’s direction.