Orville Petty’s twin brother Orlando Petty earned the Medal of Honor while serving as a Navy medical officer in World War I. After earning a Bachelor of Arts degree from Muskingum College in 1898, Orville attended Pittsburgh Theological Seminary and was ordained a Presbyterian minister in 1901. He earned a Doctor of Philosophy in Philosophy and Education from Yale in 1915. He served as Chaplain of 2d Connecticut Infantry on the Mexican border in 1916 and then with the 102d Infantry in World War I. He received a Doctor of Divinity from Yale in 1919. After serving in World War I, he was Chaplain of the 169th Infantry from 1921 to 1938, retiring as a colonel.



