This is a really old posting, but thought I would give it a go.
I am related to the Rule side of the family. SARAH A RULE was the youngest sibling to my 4x great grandmother CELIA RULE who married Henry Harrell (and two other men). I would imagine your CELIA ZOOK is named after her aunt. Anyway, Sarah's father is GEORGE RULE. She and her father and another sibling (Melinda) and her step-mother Abby are listed in the 1850 Fed Census in Green Township, Morgan County, Indiana.
You stated that Sarah’s parents were from North Carolina. I would be interested to know where you obtained that info from, since I have not been able to locate Sarah’s mother. I had always assumed she was from Tennessee, like George. There are Rules in NC as well.
I have not been able to trace George Rule any farther back, but as I understand it he was born about 1800 in Tennessee. The Rule family is very big in Eastern Tennessee and I am trying to track down his parents right now, but I am having a bit of a hard time of it.