In January 1894 Diannah was visiting her granddaughter and namesake, Mary Diannah "Annie" Knight, eldest child of her son Jesse, in Fox, Indian Territory, and it was there she died at age 87 on January 16, 1894. (In one family record, the date of death is recorded as occurring on January 1, 1894.)    1894 outside the small town of Fox, in what is now Carter County, Oklahoma, in the old Indian Territory Cemetery called Freeo. It is now abandoned and about 500 yards east of Clinton Owens Road by Choctaw Creek. It cannot be seen from the road. Most of the burials there were prior to Oklahoma statehood. A stone wall was built around Diannah's grave by her son Jesse and Ben Knight, husband of Jesse's daughter Mary Diannah. They hauled two wagon loads of rocks into the cemetery with which to construct the carved stone marker bearing Diannah's initials with birth and death years.  

At the time of her death Diannah's surviving children were Catherine C. Ezell, 71, Martha L. Wilson, 68, Harriett E. Pruett, 65, William M. Pruitt, 62, Thurza S. Catledge 56, Benjamin F. Pruitt 54, and Jesse C.F. Pruitt 50, and Mary M. Catledge 46. Diannah and Tillman had over 80 grandchildren.