correct mothers name of Christopher Nielsen

there seems to be two different mothers names for Christopher Nielsen. would someone kindly clarify this? Marriage: Marthe Pedersdatter and Christopher Nielsen Source information: Hedmark county, Vang in Vang, Parish register copy nr. 8 (1832-1854), Marriage records 1842, page 209. #7 Permanent pagelink: http://www.arkivverket.no/URN:kb_read?idx_kildeid=1494&idx_id=1494&uid=ny&idx_side=-236 Marriage also here http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&sidenr=5&filnamn=vi04141841&gardpostnr=39&personpostnr=223&merk=223#ovre Christopher 1801 Mothers name—Kierstie Johnsd Kierstie Johnsd 1748 http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&sidenr=34&filnamn=f18010414&gardpostnr=15&personpostnr=236&merk=236#ovre Christopher Nielsen birth 6th name down Sept 11 1785 mothers name- Kirsten Olsdatter Source information: Hedmark county, Vang, Parish register (official) nr. 5 (1784-1809), Birth and baptism records 1786, page 356-357. Permanent pagelink: http://www.arkivverket.no/URN:kb_read?idx_kildeid=9049&idx_id=9049&uid=ny&idx_side=-70 Confirmation if this is correct Christopher Nielsen confirm 10th name down page 33 Source information: Hedmark county, Vang, Parish register (official) nr. 4 (1776-1806), Confirmation records 1798-1799, page 32-33. Permanent pagelink: http://www.arkivverket.no/URN:kb_read?idx_kildeid=9048&idx_id=9048&uid=ny&idx_side=-17