Sheila, I am not researching the Mothershead family myself. I have 2 books which list obits. and marriages that ran in Lexington, Ky area newspapers from about 1787-1865. When I have time I have been posting some to genforum. I have another mothershead which is as follows:
"Mrs. Ruth Mothershead, of Scott co.. Died Apr. 15, 1840, age 77 years." This ran in the Lexington Observer and Reporter on April 22, 1840.
The Nathaniel one has more to the obit. You would need to get a copy of the original newspaper. They are held at the Lexington Public Library. You may be able to get someone there to make a copy of the whole obituary. You can also order the newspaper on microfilm at a Family History center(Mormans) and view it yourself.
Let me know if you have other names in the fayette co. area you would like me to look up. I also have some books on Estill co.