Mrs. Ann Mary (Van Horne) Clarkson
aka Augustus Vallette Van Horne, Sr.
1736-1796
Mrs Anne/Anna Maria (Van Cortlandt) Marston, Van Horne
1736-1790
Sr., of Potsdam, St. Lawrence County, New York
1765-1845
President of the New York Stock Exchange
1807-1887
Mrs. Elizabeth (Clarkson) Clarkson
1810-1883
of "Southwood" Columbia County, New York
1813-1861
Potsdam, New York