Clarence Ferrier (1908-1990) was a photographer for more than twenty-seven years at All American Engineering Co., an aeronautical engineering and research firm incorporated in Georgetown, Delaware, on October 31, 1952. He retired in 1969.

All American Engineering Company was originally a division of All American Aviation, Inc., which provided an experimental airmail pick-up service. In 1948, All American Aviation was designated the principal feeder airline for the Mid-Atlantic region. In response to its evolution into a conventional airline, the company changed its name to All American Airways, Inc. on September 20, 1948. On January 2, 1953, All American Airways split its engineering and research units to become Allegheny Airlines, Inc. and All American Engineering Company. Allegheny Airlines, Inc. was renamed USAir, Inc., on October 28, 1979.

All American Engineering continued refining and manufacturing the automatic cargo and airmail pick-up equipment originally developed by its predecessor during the 1930s. It also developed gliders, ejection seat trainers, airborne winches, ski attachments, and other landing gear. The firm was renamed All American Industries on June 11, 1970, and merged into International Controls Corp. on May 7, 1982.