William Hartwell Blackwell (July 22, 1882 – November 3, 1963) was an American fruit farmer and politician from New Jersey.
His family homestead later became property of the state of New Jersey to be used as a park to commemorate the Crossing of the Delaware.
[1] He was the son of fruit farmer Charles Ely Blackwell and Sarah Elizabeth Hartwell.
He then grew fruit in Titusville, and by 1919 he became one of the largest producers of Bartlett pears in the state of New Jersey.
[5] In 1922, he was elected to the New Jersey Senate as a Republican, representing Mercer County.