What a joy to find this group! My connection is through William and Permelia. They were in Roane County in 1900. However, his name was listed as Weston W. Teasley.
Roane County 1900 Census 12th Civil District 206-241 Teasley, Weston W. head w m married 16 yrs. born Nov. 1857 42 yrs. born TN parents born GA farmer, can read, write and speak English. Rents farm. Melia J. wife female born Oct. 1866 33 yrs born KY, parents born Scotland. Can read, write and speak English. 2 children, 2 living. Austin W. Haynes stepson w m born July 1881 18 yrs. single born KY parents born KY Birtie M. Mallicote boarder w f 5 yrs. born July 1894 born TN
Permelia was first married to Archibald Haynes August 31, 1876 in Pulaski County, KY.
You made reference to Arthur Weasley Teasley, I believe Austin Haynes and Arthur are one in the same. No listing for Arthur on the 1900 census. Evidently, seeing your marriage info for him, he took Teasley as his last name eventually.
Bertie, who was in this household in 1900, was the daughter of George Mallicote and Eliza Huddleston. Eliza died, and Bertie and her sister Bertha went to live with relatives for a while.
George Mallicote was the son of Nancy Teasley circa 1830 (listed as age 40 in the 1870 Roane census) and Thomas Mallicote.
Now, who is Nancy? And what is her relationship to William Martin aka Weston W.?