Hello Wesley, I believe that Johnson Adams, Sr. (b. 1785) had a son Levi Adams b. 1820 who married Matilda (possibly Varner) and had children per the 1850 Polk Co. TN census records named John, Margaret and James K.P.I do not show a son William Knight Adams, but he may show up on the 1860 or 1870 census which I haven't looked for yet.I have found Levi and Matilda in the 1880 McMinn Co. TN as you state.In that census, living next door is a possible son, William Adams b. 1850 with wife Liza and children Lizzie, James, Lueza, Robert and Martha.Is this the William Adams to which you refer?
Do you know where Levi was in 1860 and 1870?
I'd be most interested in any documentation/proof you have on the Levi Adams/Matilda Varner marriage and descendants.
Looking foward to comparing notes with you.Email me directly please. Lorien Gunsallus