Yes, Hamilton Parrish is buried in Parrish Cemetery near Hortense, Polk County, Texas. You can reach the cemetery by going north on Hwy 59 out of Livingston to Leggett. Then turn right (east) on FM 942. Go thru the communities of Ollie and then Hortense and then start looking for the sign for the Parrish Cemetery. It is on the left side of the road at a curve that goes to the right as I recall (I have visited that cemetery a couple of times -- Hamilton is my gggrandfather). For a good map of the area, go to www.mapquest.com
and look for Hortense, TX. It doesn't show Leggett on that map, but that's where FM 942 and Hwy 59 intersect.