Hi; that's about all I have on the Harper family, but I would love to know who the parents were of Zilpha. She is not related to me, but Her first husband (Miles Cary) is six generation to me.
You might check out some of the baptist chruch records of the area. I have found a wealth of information within them. Let me know if you find any Cary's, or Carey's.

Good Luck.

Jim Cary