When did the father of George J. Gruen pass away ?
George J. Gruen George J. Gruen (1877–1953) was an American watchmaker who managed the Gruen Watch Co. He was the second son of the founder Dietrich Gruen.
Alfred Gruenther Alfred Maximilian Gruenther (March 3, 1899 – May 30, 1983) was a senior United States Army officer, Red Cross president, and bridge player. At age fifty-three, he became the youngest four-star general in the U.S. Army's history. He succeeded General Matthew Ridgway as the Supreme Allied Commander (SACEUR) in Europe serving from 1953 to 1956.