Denison, Grayson County
(Originally at 215 W. Houston, Sherman) Oldest extant house in city. Erected in 1850s by Dr. R. L. Bullock. Built around typical "dog run," or entry hall. Had first window glass in county. Family home of Confederate Col. T. C. Bass since 1867. His daughter Nettie, born here 1868, lived in home 97 years. Recorded Texas Historic Landmark - 1968