Where's Rebekah?

Have you ever tried to track someone thru the census and just have them disappear? I have and it is frustrating!

I'm trying to figure out my Crawford family in Kentucky on the tax lists. Once I sat down to analyze the data, it was fairly easy to use land records to figure out the Madison County, Kentucky records prior to 1800. (See Tax Man Cometh)

However, the Lincoln County, Kentucky tax lists are proving to be a bit more difficult. There is a Rebekah Crawford who receives land from George Douglas in 1786. (See Rebekah's Land)

Rebekah appears on the Lincoln County tax list in 1787.

She alos appears in  1789 and 1791. I have not found her after 1791.

Rebekah Crawford gave consent for the marriage of Mary Crawford to James Sellers in 1791 and for the marriage of Sarah Crawford to William Sellers in 1796. Thus, it is believed that Rebekah is the mother of Mary and Sarah. (See Marriage Bond Mystery)

James Sellers first appears on the tax list in 1789. He also appears in 1791, 1792, 1794, 1795 and 1796. None of the records for James Sellers indicate that he owned land.

William Sellers first appears on the tax list in 1792 as a male over 16. He is also listed on the 1794, 1795 and 1796 tax lists. On the 1795 list, he is listed owning 100 acres on Sugar Creek. On the 1796 tax list, William Sellers is listed with 50 acres on Sugar Creek.

In 1793, a third Crawford marriage occurred in Lincoln County between James Crawford and Martha Knight. A Nathan Douglas along with a James Crawford signed the bond for the marriage. This suggests that Rebekah Crawford may have been the mother of this James Crawford. (See James Crawford of Preble County)

There are several James Crawfords listed on these tax lists. Any one of them could be James and Martha. The first appears on the 1790 tax list. In 1791, a James Crawford is listed as a male over 16. In 1792, a James Crawford is listed with 120 acres.

In 1794, there are two James Crawfords listed in Lincoln County, Kentucky. One has 114 acres and the other isn't listed with land.

In 1795, there are three James Crawfords listed in Lincoln County, Kentucky. One has 114 acres and the other two are not listed with land.

From 1796 to 1798, there aren't any James Crawfords listed. In 1799, there is one James Crawford listed with 100 acres on Rolling Forks.

If Rebekah Crawford is the mother of Sarah, Mary and James, then where is she after 1791?

• Does Rebekah Crawford remarry? If so, where is the record?
• What happens to Rebekah Crawford's land? 
• Could William and Sarah Sellers have set up housekeeping on Rebekah Crawford's property? If so, then why isn't the land listed for either Rebekah Crawford or William Sellers?
• Where is the 114 acres of land on Sugar Creek that James Crafford is listed with in 1795? Is this Rebekah Crawford's land?
• Could Rebekah Crawford have died prior to 1800? If so, where is the probate record or at least a land record transferring the title of the land.