She was confirmed on 23 November 1777 in Bamble.[2]
She married Erich Gundersen. No wedding record has been found, but it's likely that they were married in Bamble, where there's a period in the early 1780s when the parish records are poorly kept.
↑ 1.01.1Scanned Norwegian Church records at Digitalarkivet. Solum parish, Telemark. SAKO/A-306/F/Fa/L0002: Parish register (official) no. I 2, 1713-1761. Births and Christenings page 124. 1 Nov 1756: Niels Guttormsøns og Anne Aagesdatters barn Marthe. Faddere: Aasol Fieldet, Lorentz Olsøn, Eric Tostensøn, Lisbet Olsdatter, Karen Olsdatter.
↑Scanned Norwegian Church records at Digitalarkivet. Bamble parish, Telemark. SAKO/A-253/F/Fa/L0002: Parish register (official) no. I 2, 1775-1814. Confirmations page 330-331. 23 Nov 1777: Marthe Nilsdatter Ravnes.
↑Scanned Norwegian Church records at Digitalarkivet. Porsgrunn parish, Telemark. SAKO/A-104/F/Fa/L0003: Parish register (official) no. 3 (Betrothals and Weddings), 1764-1814 page 142-143. 24 Aug 1791 at troloves 27 Aug 1791: Enkemand Niels Rasmusen Bert med Marthe Nielsdatter, enke efter Erich Gundersen af Herre. Forlovere Hans Nielsen Møller og Christen Jensen.
↑Scanned Norwegian Church records at Digitalarkivet. Porsgrunn parish, Telemark. SAKO/A-104/F/Fa/L0002: Parish register (official) no. 2 (Østre Porsgrunn), 1764-1814. Chronological list page 170-171. 26 Nov 1791: Cop. enkemand Niels Rasmusen Bert af Herre med pigen Marthe Nielsdatter.
↑Scanned Norwegian Census records at Digitalarkivet. Year 1801 census. Porsgrunn Parish, Telemark. Herre RA/EA-4070/J/Jd/L0031 page 628b-629a. Household no. 3: Huseier og kleinsmed Niels Rasmusen Barth.
↑Scanned Norwegian Church records at Digitalarkivet. Porsgrunn parish, Telemark. SAKO/A-104/F/Fa/L0002: Parish register (official) no. 2 (Østre Porsgrunn), 1764-1814. Deaths and Burials page 320-321. 24 Mar 1809: Niels Berths kone Marthe Nielsdatter 53 aar.
↑Scanned Norwegian Church records at Digitalarkivet. Bamble parish, Telemark. SAKO/A-253/F/Fa/L0002: Parish register (official) no. I 2, 1775-1814. Births and Christenings page 54-55. 4 Apr 1784: Gunder, foreldre Erich Gundersen og Marte Nielsdatter fra Herre. Faddere: Hans Aaslands kone Torbor Olsdatter, Kari Olsdatter begge fra Herre, Hans Gundersen, Christen Christiansen fra Herre, Ole Amundsen fra Ombosnæss.
↑Scanned Norwegian Church records at Digitalarkivet. Bamble parish, Telemark. SAKO/A-253/F/Fa/L0002: Parish register (official) no. I 2, 1775-1814. Births and Christenings page 62-63. 12 Jun 1785: Mari, foreldre Erich Gundersen og hustrue Marthe Nielsdatter fra Verket Herre. Faddere: Hans Nielsens kone Torbor Olsdatter, pigen Maren Olsdatter, Hans Gunuldsen, Ole Larsen, Jens Pedersen alle fra Herre.
↑Scanned Norwegian Church records at Digitalarkivet. Porsgrunn parish, Telemark. SAKO/A-104/F/Fa/L0002: Parish register (official) no. 2 (Østre Porsgrunn), 1764-1814. Chronological list page 140-141. 6 Apr 1788: Døbt fra Herre, Erich Gundersen og Marthe Nielsdatters barn Erich. Test: Ole Olsens kone Birthe Maria Christensdatter, pigen Inger Thorsdatter, Erich Finne, Ole Olsen, Hans Gutormsen.