Hi Antoinette,
Sorry, I have no idea where the
Dempster came from. Other family members bore the name too, so might be a maiden or other relative's name. Of course, could equally have been in honor of John
Dempster, since they were all younger than he was.
Ironically, since I posted that info, I discovered that my great grandmother was adopted. John
Dempster was her adopted father, his wife Saray was her eldest sister. So I've mostly dropped my research on John
Dempster King prior to his marriage to my great great aunt Sarah.