And, for good measure, here's the original of the letter that you quote (from 2 PA Archives 3: 139):
This letter is at the PA State Archives at Harrisburg, among the Records of Pennsylvania’s Revolutionary Governments, 1775-1790 (54 Reels): Reel 13, Images 442-443.
I do want to note (maybe I have before) that the William Henry discussed in this letter is not William Henry (1729-1786) of Lancaster, who had been a gunsmith in the 1750s. (He was never a colonel.) This is another William Henry, of Philadelphia, who became one of that city's Lieutenants during the war. He survived WH of Lancaster and resigned from his post in 1790 or 1792.