Jacob Loucks Devers was a general in the United States Army who commanded the 6th Army Group in the European Theater during World War II. He was involved in the development and adoption of numerous weapons, including the M4 Sherman and M26 Pershing tanks, the DUKW amphibious truck, the Bell H13 Sioux helicopter and the M16 rifle.
Jacob Loucks Devers was born onSeptember 1887, in York, Pennsylvania, a small industrial town in the southeastern corner of the state. His parents were Philip Devers, a watchmaker and partner in a jewellery store, and Ella Kate Loucks Devers, a homemaker. He was the first of the couples four children. He had two younger brothers, Frank and Phillip, and a younger sister, Catherine, known as Kitts. The Devers, of Irish and GermanAlsatian ancestry, were strict, hardworking and religious. The family belonged to the Evangelical Lutheran Church, which did not believe in smoking or drinking. While providing a comfortable middleclass life for their children, the couple taught them to value dependability, integrity and industriousness.
Source: Wikipedia