He was married in 1808 and had eight children of who six (listed above) survived childhood. He is the ancestor of the International Harvester McCormicks.
Parents
Robert McCormick
Private Robert McCormick Sr., Weaver, of Rockbridge County, Virginia
1738-1818
Martha (Sanderson) McCormick
Mrs Martha (Sanderson) McCormick
1747-1804
Spouse
Mary Ann (Hall) McCormick
Mrs Mary Ann (Hall) McCormick
1780-1853
Children
Cyrus Hall McCormick Sr.
Founder of the International Harvester Co., Chicago
1809-1884
William Sanderson McCormick
Co-Founder of International Harvester, Chicago
1815-1865
Mary (McCormick) Shields
Mrs Mary Caroline (McCormick) Shields
1817-1888
Leander James McCormick
Leander J. McCormick, Senior Partner, of International Harvester, Chicago
1819-1900
John Priestly McCormick
of Spottswood, Augusta County, Virginia; died unmarried
