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I'm trying to decipher the names of my great grandfathers parents. Here some background info that might help fresh eyes.

My great grandfather was named John Martinson. He was born in Lillehammer in 1903. Im unsure if John was his given name at birth or if he changed it to something more English upon arrival to Canada(before 1928). Im also not sure if his parents came to Canada with him. The screenshot Iv'e provided is from his marriage record. Due to Norwegian naming practice, him and his father do not have the same surname.

His fathers first name is presumably Martin, as it looks to be written that way, and Martinson was my great grandfathers surname. That being said, I have been completely unsuccessful at coming up with a plausible Norwegian surname. I just know it starts with a "H". Iv'e stared at this record so long it's giving me a migraine! 

His mothers name looks to be written as Jonetta Everson Galtrud Houg(spelling?). I know Jonetta is a Norwegian name, and my great grandfathers death record states his mother as Janet Galtrud which makes sense, but once again both variations seem to come up empty?

I haven't been able to find ANYTHING about either of them..
His death record states his parents names as Elias Martinson and Janet Galtrud, however I believe both of these are anglicized names, and haven't been at all useful in finding information.

note: the two dips/loops that come down into the fathers name are from the word January written above.

Trying to make sense of this 1841 Scotland census. To the best of my knowledge, my 4th gg Agnes Crawford married James Kilgour in 1834. They gave birth to my 3rd gg Agnes Kilgour and 2 other children between 1837 and 1843. Now this is where I get lost.

I found a 1851 Scotland census(transcription, not original doc) with the occupants as listed:
Samuel Nicol   30
Agnes Nicol   34
Bryce Nicol   1   (son)
Janet Kilgour   13 (stepdaughter)
Agnes Kilgour   11 (stepdaughter)
Jamesina A Kilgour   8 (stepdaughter)

So I went a decade back to try and find one with the two oldest children living with their father, and this is what I found in the 1841 Scotland census(transcription, not original doc):

James Kilgour   30
Agnes Kilgour   25
Jennet Kilgour   10 Mo
Margret Crawfert   25

My current theory, which totally could be wishful thinking, is that the ages/names have been mixed up in the transcription of the 1841 census. my 3rd gg Agnes Kilgour should be roughly 10mos, her older sister Janet would've been around 2.5 years, and my 4th gg Agnes Crawford and James Kilgour would've been 25 and 30. Even more convincing, is both the 1841 and 1851 census list George St, Ayrshire as their address. But without the original document, I'm unable to confirm where the name Margaret is coming from.. or if my theory is even remotely close.