William was born at
South Carolina on 18 September 1810. He was the son of
William "Irish Billy" Knox and
Margaret Knox. He married
Susan Elizabeth Wylie circa 1835. William M. Knox was census 1850 - free in 1850 at
Chester Co., South Carolina; In the 1850 census for South Carolina, Chester Co. lists the following family:
Wm. Knox, age 40, born in South Carolina;
E. Knox, age 33, born in South Carolina; W.F. Knox, age 14, born in South Carolina;
S.J. Knox, age 11, born in South Carolina;
M.E. Knox, age 9, born in South Carolina;
M.E. Knox, age 5, born in South Carolina;
John Knox, age 2, born in South Carolina;
Margart Knox, age 68, born in South Carolina.
He was census 1860 - free in 1860 at
Chester Co., South Carolina; In the 1860 for South Carolina, Chester Co., lists the following family:
Wm. Knox, age 50, born in South Carolina;
Elizabeth Knox, age 43, born in South Carolina;
Mary E. Knox, age 15, born in South Carolina;
Jas W. Knox, age 8, born in South Carolina;
Caroline Knox, age 6, born in South Carolina;
Samuel Knox, age 2, born in South Carolina;
Margaret Knox, age 80, born in South Carolina.
He was census 1870 in 1870 at
Lewisburg Twp., Chester Co., South Carolina; In the 1870 census for South Carolina, Chester Co., Lewisville Twp. lists the following family:
William Knox, age 59, born in South Carolina;
Elizabeth Knox, age 54, born in South Carolina;
James W. Knox, age 18, born in South Carolina;
Caroline Knox, age 16, born in South Carolina;
Samuel Knox, age 15, born in South Carolina;
Mary Finney, age 54, born in South Carolina. William died on 1 October 1872 at age 62. His body was interred in October 1872 at
Chester Co., South Carolina, at Union ARP Cemetery.