You'll need to add more information so that they know as much as possible about your John Martin Wilson. For example, you say he was born in Kristiana. What is your source? They'll want to be able to critique how reliable that information is. Many immmigrant descendants have a simple answer like that - a well-known city - as a supposed birthplace, but doesn't always turn out to be the whole truth (like, maybe the person lived there a short while before immigrating, etc.).
Do you have a specific day and month in 1874 for his birth date? Why do you say he's born in 1874? (what is source)
Have you found him any census? If so transcribe it and post it.
You have confirmation he emigrated from Scotland to Canada - share that. What's the source, what did the record say?
What were his children's names (this could be a clue to his parents, as many Norwegian immigrants named their first born children after the father's parents, second born after themother's parents).
I'm not so sure the best hope for an answer will be to sit and wait for a relative to find you online. Usually people who know their ancestors don't do an internet search looking for connections. People who do NOT know their ancestors do that. I think you have a shot at finding the answer with help from the Norway Heritage Community.
Unless you've already figured it out. If so, bravo! ; D