Carol, where did you find any evidence that David Murphree served in the Revolutionary War?
I've managed to find records that prove service for Moses and Solomon, but not for David.Some descendants seem to think that he served in the South Carolina militia, but that seems highly unlikely.
Regarding Levi, there is no record at all in North Carolina records of service by Levi.
Levi lived in Chatham County, North Carolina during the period of the war there.A year or so after the British withdrawal he briefly moved to Sullivan County in what became Tennessee before returning to Chatham County where he lived until long after the was was over.All militia records for Chatham County have been lost for the period of the war, and there is record of regular army service only for Moses and Solomon Murphree. It is possible that he served in the local militia in Sullivan County -- while there were no British there at the time, the Indian threat was significant.I have no checked the availability of those records, which may exist at the Tennessee Archives.
Also, I might point out that the list of children of Daniel Murphree is incorrect.He did not have sons named Mills or Nimrod, and he did have a son named Moses.His will names eight sons and two daughters.
Nor do we know the name of his wife. "Dempsey" is only a guess, first published in 1974, for which no evidence exists.In fact, there is some reason to believe that he had more than one wife.