When Tollev Nilsen was born on 6 May 1753, in Sigdal, Buskerud, Norway, his father, Nils Eriksen, was 32 and his mother, Guri Erlandsdatter, was 32. He married Marit Christensdr on 5 April 1778, in Sigdal, Buskerud, Norway. They were the parents of at least 1 daughter. He died on 1 October 1823, in his hometown, at the age of 70, and was buried in Sigdal, Buskerud, Norway.
Some characteristic forenames: Scandinavian Erik, Nils, Alf, Bjorn, Lars, Per, Nels, Anders, Bente, Tor, Arnfinn, Astrid. German Hans, Kurt, Ralf, Arnulf, Otto.
Norwegian: patronymic from the personal name Nils, a shortened form of Nikolaus. This form of the surname is also found in Denmark, but it is rare there. Compare Nelsen .
Altered form of Norwegian Nilssen, a variant of 1, and probably also of the Danish, Norwegian, or North German cognate Nielsen (compare Nilson ).