When Glenn Orville Trowbridge was born on 22 February 1901, in Indiana, United States, his father, Herman Trowbridge, was 25 and his mother, Emily Ann Foster, was 14. He married Anna Scobie on 9 December 1921, in Hillsdale, Hillsdale, Michigan, United States. They were the parents of at least 1 son. He lived in Camden, Hillsdale, Michigan, United States for about 10 years. He died on 27 November 1980, in Sandstone, Jackson, Michigan, United States, at the age of 79, and was buried in Sandstone, Jackson, Michigan, United States.