When David N. Baumann was born on 10 January 1888, in New York City, New York, United States, his father, Jacob Baumann, was 31 and his mother, Frances Fischer, was 24. He married Alma Belle Steiniger on 6 February 1911, in New York City, New York, United States. They were the parents of at least 2 sons. He lived in White Plains, Westchester, New York, United States for about 10 years and Manhattan, New York City, New York, United States in 1940. He died on 16 March 1948, in New York City, New York, United States, at the age of 60, and was buried in Ridgewood, Queens, New York, United States.