Maybe I have wrong names again. :(

Here is what I know for sure. . .
My gr. grandfather was Otto Torgersen born in Norway in 1865.
I think his middle name was Anders.
His sister Laura married Martin Mikkelsen.
Otto also had a brother named Johan. Johan had a son named Hans.

I do not know about any other brothers and sisters of Otto.
Now - there seems to be much confusion about Otto's parents.
I have a 2nd cousin who thinks the names are Larz Torgersen and Maren Grosvold.
Thank-you all so much for helping me!!!!!