Dear Bernard
First let me say I have just finished the Empty Throne and found it immensely entertaining, really good thank you. I wondered in researching your book, did you ever get a chance to visit Chester at all ?
Second Dan posted on October 10th on whether the US Rifles fought the UK Rifles. The closest was when they fought the Glengarry Light Infantry (modelled on the 95th) at Ogdensburg in 1813. The Article here may be of interest http://www.napoleon-series.org/military/Warof1812/2007/Issue7/c_OGDEN.html
While the Historian Donald Hicky in his book don’t give up the Ship the myths of 1812 did a direct comparison between the actual Rifles themselves.
Yours sincerely
Geraint