- Born December 12, 1869 in Owosso, Shiawasse County, Michigan.
- Parents were EZRA MASON and MATHELLA OPHELIA DAVIS.
- Married KATE SAGENDORPH on December 24, 1894 in Jackson, Jackson County, Michigan. Kate was born April 6, 1870 in Charlotte, Eaton County, Michigan; and died July 22, 1959 in St. Petersburg, Pinellas County, Florida. Her parents were DANIEL PERRY SAGENDORPH and MARY ANGELINE MUNSON.
- Died April 7, 1916 in Lawrence, Douglas County, Kansas.
- EDWARD SAGENDORPH MASON, born February 22, 1899 in Clinton, Clinton County, Iowa; died February 28, 1882 in Santa Barbara, Santa Barbara County, California.
- WARREN PERRY MASON, born September 28, 1900 in Colorado Springs, El Paso County, Colorado; died August 23, 1986 in Gainesville, Florida.