One of them was a Scot and fellow-piper, John MacGregor.
I have also read that history long ago, but it was good to read more from Clan Gregor.
When in San Antonia, I also attended the San Antonio Highland Games in Helotes, where I met members of the Bexar Pipe Band and also members of the San Antonio Pipes and Drums. They were fine folks who made this northerner feel so welcome. ( I'd live there if I could.)
Members from both bands mentioned Piper John McGregor. He is a local hero to the bandsmen of San Antonio, which means he will never be forgotten. Few areas of the US have such an inspirational figure of such a piper as Long John McGregor.