Mari Amundsdatter (Vaterland)

I am attempting to find more records of my ancestor Mari Amundsdatter (Vaterland). This is what I know: She was married to Johan Thorssen 22 May 1805. That record can be seen at Fron 1799 - 1816 Ministerialbok page 306 ist column 2nd record. I think I have her on the 1801 census from Fron # 3131 age 25 Johan died 3 December 1825. That record can be seen at Fron 1816 - 1827 Ministerialbok page 120 # 6 for 1825. I have found a death record for a Mari Amundsdatter at Fron 1816 - 1827 page 118 # 6 for 1825. The date is 11 January 1825. Is there any indication this is the correct Mari Amundsdatter. if so within a year six young children were orphans. I am descended from the son Amund born 5 February 1816. Thanks in advance for all help provided. Marlon Henvit Reno, Nevada USA