Rorex/Rorax

Searching for information about William Rorex, born 7 Apr 1777 in Rowan, NC, died 1850 Jackson Co. AL.
He married Mary Polly Keys.

They had a daughter Louisa Eliza Rorex, born between 1824-1830 in Jackson Co. AL.

A William Rorex is listed with Louisa Thompson and her two children, William D. and Catharine in the 1850 census of Licoln Co. TN. This William could have been her brother or father.
I believe her to be my ggggrandmother. I believe she married William or David Thompson in 1845 in Lincoln Co. TN.

Would appreciate any help here.
Thanks.