Thanks for your comments chaps, much appreciated.
gustav: Talavera was the first time that the 95e Ligne met the British in action and so not before 1809 and even though there were 35 rank and file of the British 95th Rifles in the first battalion of detachments present the 95e Ligne were in reserve throughout the battle, so it is unlikely they were directly engaged.
I know the 4/95e Ligne were present at Fuentes d'Onoro, part of the 2nd Provisional Regiment in IXth Corps, as were the 95th Rifles as part of the Light Division, but again weren't directly engaged AFAIK.