Its been so long since I looked at it, I can't remember if I got what you posted or not. When I look at my database it seems to have Nicolai's children's generation and some of the next but I don't have much after that. Where did you post that family tree?
Since I can't remember much about where we left off I'm not sure what new information I might have.
I found Johann and Nicolai's parents and siblings as well as earlier generations back in Norway. Do you have that information too? It only goes back about 2 more generations (3 on one line).
I've likely filled in some more information on Johann's (my ggggrandfather) descendents, particularly the lines that lead to me.
Let me know what I can give you and what more you might have for me.