Neils Carlsen was born on 6 Apr 1820 in Bergan, Mælum, Skien, Solum, Telemark, Norway; was christened on 7 May 1820 in Bergan, Mælum, Skien, Solum, Telemark, Norway; died on 29 Jan 1821 in Bergan, Mælum, Skien, Solum, Telemark, Norway; was buried on 11 Feb 1821 in Bergan, Mælum, Skien, Solum, Telemark, Norway.