Many New England farms traditionally had their barns connected to the farmhouse, no doubt because of the deep snow and vicious cold each winter. Sometimes the additions seem to run on and on.
CONNECTING BARNS
You never know what we'll churn up in cleaning a stall
Jnana's Red Barn 
Quaker? In Germany, the family farms have the barns attached to the house or even the barn under the house that is above. I was told the barn animals were kept under/next to the living quarters to preserve the body heat of the human and barn animals.
I can well imagine that was the case. Here, the barns are often much bigger than the farmhouse.
In this case, everybody did it, not just the Quakers, tho’ it’s said that some of the best barns in New England were designed during the silent Quaker worship.