Hi, yes it does happen .
My hubby's G, G Grandfather is listed as boarder in his own daughter's house ( it's his son - in- law who's head of the household)
In my hubby's G G grandfather's case I've just taken it to mean he was probably paying for his keep/ paying his own way in the household.
I also have another one that is listed as boarder and she is the aunt to the head of our household.
I always tend to check out the boarders in the household because sometimes some of them do turn out to be close family members
Boarder supposedly means that they share the dinner table etc with the family, ie they live with the family unit . So I think the term boarder can sometimes technically apply to a family member who is paying their own way.
Whilst a lodger supposedly has separate a room or rooms , meals etc to the family.
Kind Regards
