When Jacob Jensen was born in October 1746, in Tranholm, Horsens, Kær, Ålborg, Denmark, his father, Jens Jensen, was 50 and his mother, Karen Olufsdatter, was 28. He married Johanne Jensen about 1775, in Horsens, Ålborghus, Denmark. They were the parents of at least 2 sons and 3 daughters. He died on 6 December 1816, at the age of 70, and was buried in Horsens, Ålborghus, Denmark.
Some characteristic forenames: Scandinavian Erik, Nels, Niels, Lars, Holger, Einer, Jorgen, Bent, Knud, Per, Ove, Morten.
Danish, Norwegian, and North German: patronymic from the personal name Jens, a shortened form of Johannes (see John ). This is the most frequent surname in Denmark. In North America, this surname is also an altered form of the variant Jenssen . Compare Jenson 2 and Johnson .
English: variant of Jennison .