Mary B. Gray was born in Pittsburgh, Pennsylvania, in 1888, married Jesse M. Gibson in 1906 and lived in Des Moines, Iowa, until 1937, when they retired to Los Angeles, California. They returned to Des Moines when the war broke out, but after Jesse died in 1944, Mary returned to California and lived with her son Maurice.
Sources
United States Census, 1900, Iowa, Polk County, Des Moines, Ward 3, family #47, p. 3B.
Iowa State Census, 1905, Polk County, Des Moines.
Unites States Census, 1910, Iowa, Polk County, Des Moines, Ward 1, p. 6A, family #118.
United States Census, 1920, Iowa, Polk County, Des Moines, Ward 2, p. 6A, family #141.
United States Census, 1930, Iowa, Polk County, Des Moines Ward 1, p. 21A, family #366.