Believed to date from the mid-1800s, Allison Cemetery occupies three acres of land. The oldest dated marker is that of a 53-year-old man who was buried in 1865, though some headstones have been moved or were destroyed over time, and older graves may be noted only by roughly shaped rocks. Most of those interred on this site are descendants of H. Dennis, Sr., and other area families. Notable graves include a family of influenza victims belived to have been buried in 1858 and several war veterans.
Near the GZ is the grave of Robert L. May, Sherriff of Grayson County. He was killed in the discharge of his duty on May 26, 1889 at the age of 37 years, 4 months, and 24 days.