George, I did not know of his resignation in April, 1863. The only family records I have is a news paper article from the Carrollton Volunteer, in 1862, saying he, as a Lt. captured perhaps a doz. or more prisoners during one afternoon of the Seven Days Battle Before Richmond and that Capt. Standley had capture even more prisoners that same morning.
And in Don Ernsberger's book, Also For Glory, Don lists that he was promoted to Capt. on 6/28/63, Co K.
Don also gives a quote of his last words, given by a survivor, "Rally boys, get over that fence". I had understood, he was shot just after that quote at the stone fence near Brian's Barn. Lt. Peel, Co. C, with a few remaining men did get over the fence, only to be captured. Perhaps Capt. Bird did survived the night and died on the 4th; if so, I suspect he died in Federal hands. I had not seen the records indicating he died on July 4th. Don's listing in his book gives 7/3 as his date of death. If you find anything else, please let me know.
I have made the request on this site before, asking for a possible photo of George Bird. If you know of any possibilities, let me know. I do have a tintype of his sister, Mary Anne and one of S. V. Hughston, both my gg grandparents.