Christopher,
So that you are not solely conducting a conversation with yourself, I will add a bit about my Pipers
1. What I know is that a Charles Piper married an Ann Brown and they lived in Portland, Lorrha Parish, North Tipp in the first half of the 19th century.
The background on him and all I have hoovered up on Pipers in Tipperary at that time is here
http://www.grantonline.com/grant-family-individuals/piper-charles/charles-piper.htm2. I think the odds are that he may have been the son of the Charles Piper you refer to above from Rathkeale in 1769.
http://www.grantonline.com/grant-family-individuals/piper-charles/rathkeale/rathkeale.htmBased really only on the fact that there are no other Charles Pipers in Rathkeale!
3. There is a Canadian site on Pipers of Rathkeale here
http://www.geocities.com/keepsakebook/piper.html4. And for the benefit of any readers who have not come across it, there is a very helpful Irish Palatine Society at Rathkeale
http://www.geocities.com/keepsakebook/piper.html Broken LinkDavid