When did the father of George J. Gruen pass away ?
Dietrich Gruen Dietrich Gruen (February 22, 1847April 10, 1911), was a German born watchmaker who emigrated to the United States in the 1860s and later founded the Gruen watch Company.
George Byrd George Byrd (born March 22, 1926 in Anson County / North Carolina, United States; died March 12, 2010 in Munich, Germany) was an American conductor. Since the 1980s he performed mainly in Germany.