Jacob Stout, son of Immanuel and Mary Griffin Stout, born October 5 1767 and died November 1855. He was the father of Henry Stout. He owned 935 acres of land in Little Creek Hundred and was listed on the assessment list of 1785 along with Widow Stout and Benjamin Stout.
More of his contributions to the history of Delaware may be found here.
Streets cited above discusses that the reason he was called Jacob Jr was to distinguish him from his grandfather, called Jacob Sr. In fact, his birth record names his father as Immanuel not as Jacob Immanuel as used in the Wikipedia article. Streets cited above spells his father's given name as Emanuel.
It may be possible to confirm family relationships with Jacob by comparing test results with other carriers of his ancestors' Y-chromosome or mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Jacob: