Please read the following for transcribing military headstones: https://support.billiongraves.com/a/solutions/articles/35000129980-transcribe-military-headstones 

While transcribing stones from Nashville National Cemetery as well as other military cemeteries further information can be obtained on this website for death dates if the stones do not have them:

Following proper genealogical standards PLEASE place the URL with additional information in the notes section for each grave. This will allow researchers to be able to see where the death dates came from on the stone. 

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