Henry Lowe Brownback, the grandson of T. S. Lowe, was born in June 1891 in Norristown, Pennsylvania. In 1912, he received his pilot's license and later received a Masters degree from Cornell University. He went on to work at various motor and engine companies, and eventually became the vice president of the Brownback Motor Laboratories in Norristown, Pennsylvania. From 1925-1929, Brownback was in France, working with Allessandro Anzani. Throughout his life, Brownback held several different occupations including chief machine gun instructor at Cornell University. He also worked as a consulting engineer. Brownback has designed and built many successful airplane engines, and holds patents for airplane engine bearings.