I heard this family story about a Susannah Cain. Her sister was Elizabeth (who maybe married a William, but that could be wrong) and a brother Thomas that may have died young. Their mother may have died when they were little. They would be living in NC (maybe Orange Co area). Susannah, Elizabeth, and Thomas would be born around 1745.

Last name could be:
Cain
Caine
Cane
McCain

If anyone could help me out I would love it.

Kim