When George Dean Trowbridge was born on 28 March 1904, in Phoenix, Maricopa, Arizona, United States, his father, George Jacob Trowbridge, was 29 and his mother, Minnie Mae Fiscel, was 32. He married Vada Lamb on 11 September 1928, in Weber, Utah, United States. They were the parents of at least 1 son and 1 daughter. He lived in Tulare, Tulare, California, United States in 1910 and Los Angeles, Los Angeles, California, United States in 1920. He died on 1 January 1932, in San Fernando, Los Angeles, California, United States, at the age of 27, and was buried in Los Angeles, Los Angeles, California, United States.