Sigurd Malthe Marthinsen was born on 16 Oct 1908 in Vollen, Nøtterøy; died on 6 Sep 1980 in Nøtterøy.
Sigurd married Ruth Pettersen in Jun 1930 in Nøtterøy. Ruth (daughter of Anders Marthinsen and Hella Marie Sofi) was born on 12 Apr 1910 in Nøtterøy; died on 13 Jun 1993 in Nøtterøy; was buried on 5 Jul 1993 in Nøtterøy Kirkegård. [Group Sheet]