Husband of Mary Coates Cromby Blackwood and son of James and Margaret Hamilton Blackwood.∼William Blackwood and Mary Cromby married in South Carolina.

The 1820 census revealed William was engaged in Agriculture and they were living in Spartanburg, Spartanburg County, South Carolina. Household members: Wm. (16-25), wife (16-25) and one female (under 10).

The 1830 census revealed household members: Wm. (30-39), wife (30-39), Theron & William (5-9), Chales (under 5) and Mary Ann (under 5).

The 1840 census revealed household members: Wm. (40-49), wife (40-49), Theron & William (15-19), Charles (10-14) Thomas, James & Alexander (5-9) and John (under 5), Mary Ann (10-14), one female (5-9), Martha & Canzada (under 5) and two slaves; one female (36-54), one male (under 10).

Some family researchers think Mary died about 1842 after the birth of their son, Marcus.

The 1850 census revealed William was a farmer and their real estate value was $1000. They were living in Spartanburg County, South Carolina. They were married within the year. Household members: William Blackwood (51), Poly (49), Charles (21), Mary (20), Calvin (18), Alexander, (17), Martha (16), Cassandre (14), John (12) and Marcus(10).

The 1860 census revealed their real estate value was $7000 and personal estate value was $6827. They were living in Northern Division, Spartanburg County, South Carolina. Household members: William (61), Mary (60), Charles, farmer (36), Alexander, farmer (23), John, Dentist (19) and Marcus(18).

The 1860 Slave census revealed William Blackwood owned five slaves, Female (38), female (13), female (12), female (10) and male (7).

The 1870 census revealed their real estate value was $2500 and personal estate value was $500. They were living in Camp Obello, Spartanburg County, South Carolina. Household members: William (71) and Mary (70).

Their known children:


Theron Blackwood (b.1822 d.1876)
Daughter Blackwood (b.1820 d.bef.1830)
William Blackwood (b.1825 d.1906)
Mary Ann Blackwood (Gilbert) (b.1828 d.1910)
Charles Blackwood (b.1830 d.1899)
Thomas Blackwood (b.1830 d.1916)
James Calvin Blackwood (b.1832 d.1872)
Alexander Blackwood (b.1833 d.1862)
Daughter Blackwood (b.1835)
Martha Blackwood (Waldrop)(b.1836 d.1925)
Canzada Blackwood (Haas)(b.1838 d.1892)
John Blackwood (b.1840 d.1892)
Marcus Blackwood (b.1842 d.1911)

William and other family members were buried in the Blackwood Cemetery which was in Spartanburg County near the NC/SC state line. A farmer bought the surrounding land, and ploughed up the cemetery.