Sr., of Potsdam, St. Lawrence County, New York
Merchant, of New York City
1726-1782
Mrs Elizabeth (French) Clarkson
1724-1808
Mrs Ann Mary (Van Horne) Clarkson
1778-1856
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
