Don't know if this has any significance to your family or not, but I made this note when I was researching the KAYS in MO. at the LDS library.LDS micro: (Wills & Estates, Benton Co.) #945,734 Vol.A 1839-1869.
P. 61Kays, Samuel - 25 Oct 1857 Adm. William P. Kays (William P. Kays was my 3rdgreatgrandfather. His grandfather, George Kays went to Lincoln Co.KY and bought land there. They had a son named William Kays who was born there in 1782.The family subsequently moved to Barren Co. which became Monroe Co. where George & his wife both died.William then moved with his family to Benton Co., MO. where he died in 1854.William P. Kays was b. in 1826 in KY.
I don't know if Samuel was a brother/uncle/? of William Kays or not.What do you think?