Nashville, Davidson County, Tennessee. Birth certificate no. 646, 1903. Ancestry.com. Tennessee, City Birth Records, 1881-1915 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2012.
Marshall lived in Nashville until 1910, but shortly afterward, he and his family moved to Chicago, Illinois. In 1920, Marshall worked as a feeder in a printing shop in Chicago.
1920 United States census, Chicago Ward 23, Cook County, Illinois, population schedule, page 1B, family 29. Ancestry.com. 1920 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2010.
Marshall married Julia Ancis on 16 August 1922 in Cook County, Illinois.
Cook County Marriage Index, 1914-1921, p. 3246. Ancestry.com. Cook County, Illinois Marriage Indexes, 1912-1942 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2011.
Marshall died of tuberculous peritonitis at his residence in Chicago on 13 September 1923. He was buried at St. Joseph Cemetery in River Grove, Cook County, Illinois on 15 September 1923.
Illinois Department of Public Health. Division of Vital Statistics. Death certificate no. 24330, Marshall J. Gatlin, 1923.
Chicago Daily Tribune, 14 September 1923, page 10