I saw a family group sheet on FamilySearch.com with the following children for Christen Nielsen and Lovise Pernille Larsen: Niels Andreas 1824; Lars Jacob 1826; Niels Tobias 1828; Anne Marie 1831; Christian 1834 (looks like yours; Elias 1837; and Peder Mathias 1840.
There are 3 additional children found in the Austad register to this set of parents: Ester Cathrine 1841; Christine Lisabet 1845; and Johan Tobias 1849. I believe that this Johan Tobias is the John Nelson who married my great Aunt Jensine Jensen from Kristiansand, Norway. They lived in Rice County, MN and had a large family. If you are interested in further communication about this family and what I have found so far, let me know.
Ft Lauderdale, FL