TN obituary archives for 1985?

Cousin (and her 4 young children) died in a house fire in Del Rio, TN (e county) in December, 1985. Have been trying to find her obituary (it's not on ancestry.com or Newport Plain Talk archives). Any idea where I can find archived obituaries? The courthouse will allow me to come there to search public domain records, but I'm hoping to find something online. Many thanks!