- Born September 24, 1834 in Sterling, Worcester County, Massachusetts.
- Parents were RIAL HEYWOOD and BETSEY PALMER.
- Married HELEN MARIAH WEBB on December 5, 1861 in Chelsea, Washtenaw County, Michigan. She was born December 20, 1842 in Lima Center, Washtenaw County, Michigan; and died October 6, 1925 in Coquille, Coos County, Oregon. Her parents were JOSEPH WEBB and ELIAH ANN HELME.
- Married AMANDA PANNEBECKER on December 24, 1885 in Ironton, Iron County, Missouri. She was born February 18, 1864 in East Hanover Township, Lebanon County, Pennsylvania; and died May 10, 1861 in Clayton, St. Louis county, Missouri. Her parents were JOHN PANNEBECKER and ANN MARIAH MILLER.
- Died May 25, 1907 in Ironton, Iron County, Missouri.
CHILDREN WITH HELEN MARIAH WEBB
- CLARENCE DELORA HEYWOOD, born July 22, 1866 in Ironton, Iron County, Missouri; died May 19, 1934 in Ellensburg, Kittitas County, Washington. Married MILLIE ARTIMISHA SMITH on July 30, 1887 in Howell, Missouri
- ALICE GERTRUDE HEYWOOD, born August 19 1869 in Ironton, Iron County, Missouri; died December 8, 1951 in Lewiston Orchards, Nez Perce County, Idaho. Married JAMES C. FARR in Missouri.
CHILDREN WITH AMANDA PANNEBECKER
- WALTER WEBSTER HEYWOOD, born Movember 20, 1886 in Ironton, Iron County, Missouri; died April 18, 1891.
- ELSIE MARIE HEYWOOD, born September 16,. 1889; died July 24, 1894.
- OSCAR BLAINE HEYWOOD, born November 12, 1892 in Ironton, Iron County, Missouri; died February 3, 1963. Married PERLE MARIE CONWAY on December 25, 1919 in Iron County, Missouri.