Foehr: I know that this name can be traced back through my family to 18th century Prussia, but I have no idea what it means! I believe the village they were from was called Harthausen auf der scheer, but I could be mistaken. Any help would be greatly appreciated.
O'Regan and Fitzgerald: I believe they were from Cork or Mayo, Ireland. No other information available.
"Those who prepare for all the emergencies of life beforehand may equip themselves at the expense of joy." - Margaret Schlegel, Howards End