Col. Studler had lived in Washington since 1940, but was born in Ohio. He earned a bachelor's degree at Ohio State University and a master's degree in engineering from the Massachusetts Institute of Technology.
Studler was born 10 February 1895 in Bluffton, Ohio, graduated from Ohio State University in 1917. He joined the Army and earned his pilot's wings, and from 1918 to 1919 served as Flying Instructor at the Air Service Flying School in Texas and then Oklahoma. From 1919 to 1921 he was Operations Officer and then Commander of the 258th Heavy Bombardment Squadron, later redesignated Flight B, 14th Squadron (Bombardment), stationed at Aberdeen Proving Ground (APG), Maryland. Studler's squadron was heavily involved in the testing of aircraft ordnance.
Intrigued with the work of developing weapons, Studler transferred from the Air Service to the Ordnance Department in 1922. After completing the two-year Ordnance School of Application at Watertown Arsenal, which included studies at the Massachusetts Institute of Technology, he reported to the Office of the Chief of Ordnance (OCO) in Washington, DC, to serve as Assistant Small Arms Officer in the Small Arms Division. He worked as a troubleshooter, making repeated trips to APG, Frankford Arsenal in Philadelphia, Springfield Armory in Massachusetts, and civilian industries to consult on development and production issues or to advise on maintenance procedures.
Studler next served, from 1928 to 1929, as Proof Officer in the Gun Testing Division at APG, where he continued his work in developing and testing small arms. From 1929 to 1931 he was stationed in the Philippines as Commander of the 75th Ordnance Company and then as Adjutant, Executive Officer, and finally Commander of the Philippine Ordnance Depot. Returning to the United States, he served as Assistant Officer in Charge, then Officer in Charge, of the Engineering Division of the Small Arms Ammunition Department at Frankford Arsenal. He was commended for his development of armor- piercing .30 and .50 caliber ammunition.