U.S. States: Texas: Grayson County
GNIS site will give you map and location. You can click on Show Feature Location, you can zoom in or out on the map. By zooming out you can see where it is in relation to Sherman, the county seat. By zooming in you can see the roads in the area. No names, but you can compare them with road map.
Grayson Co, TX GenWeb has cemeteries online, but you need to go to "archived" section of the US GenWeb Project. Your gal is listed, and birth and death dates must have been readable. It gives the name and email of the person who worked on that cemetery. She could tell you something about it. Location is given at the beginning of that part on Morris Cem. Scroll down to Morris Cem. and click on hyperlink.