He was born in Ranheim, Strinden as a son of estate owner and politician Lauritz Jenssen (1837–1899) and Jørgine Wilhelmine Darre (1842–1910).
Lauritz de Thurah | Hans Wiers-Jenssen | Claus Lauritz Clausen | Lauritz Jenssen | Lauritz Galtung | Jens Lauritz Arup | Jens Book-Jenssen |