As for the 1787 census it says about the children: supported in part by the parents in part by begging. So it seems to me that the children have to support themselves for part of their own upkeep, the parents are very poor. But the children are 8, 5 and 3. How sad!
As for Hans, I will leave him for a while.
The arkivalieronline has help in English. I am sure you can manage.
I think going to neighbouring parishes is a good idea.