Hello George, and thanks for posting this.We have not gone to the grave site as yet, however still might this Fall or Winter.I did get an email from Mr. Lee...
I have seen the photo's George took of both the original and new headstone.Mary clearly died in 1865, and the headstone does identify her as the "Wife of Daniel Conatser".As I've preached for a long time, there is no evidence of a Grace Nance or Garner in any records for Daniel, furthermore the dates I've seen quoted for a marriage between these two (Nance/Garner)is 1862 which doesn't come out quite right considering Mary L. died in 1865 as "Wife of Daniel".
My Great grandfather was Christopher Columbus Conatser b. 1860 to Daniel K. and Mary L. Conatser.
If someone has documents proving a marriage of Daniel to a Nance or Garner in 1862, I would be very interested in seeing them, whatever they might be.