perhaps Martin died before 1865, and that would be between 1863 when last child was born Emma.

I found 3 more children:
that are not in the 1865 census so perhaps they also died prior?

Source information: Oppland county, Lesja in Lesja, Parish register copy nr. 5 (1850-1894), Birth and baptism records 1860, page 58-59.
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