2 Bliesmer please

Hello list, and more questions please.

Would like to find the father/siblings of Peter Bliesmer.
Peter marries a Wilhelmine Westphal on Fehmarn.
They have a son, August, who comes to USA.
Peter dies in Germany. Wilhelmine also comes to USA.
Peter, or the father of Peter, may not be from Fehmarn?

Would like to find the father/siblings of Peter Jacob Bliesmer.
He marries an Anna Katrina Sanders, Oldenburg, S/H.
A son, Heinrich Jacob, comes to USA.
A son, Nicholaus, is missing.

Maybe these two are related?
Thank you.
Richard