Greetings from Australia,
I recently purchased the death certificate of an ancestor, Alexander Wyatt, who migrated from France to Australia around 1841. On the certificate, under his father's occupation, it stated William Thomas Wyatt was a Captain in the 32nd Regiment of Foot.
William was born in Yorkshire and heir to his father's estate in Horsted Keynes, Sussex; however, his father outlived him. William married a French woman in exile in England during the revolution "terrors" and moved with her to France after things settled, since she inherited title in Rouen. According to the "Register of Burials in the City of Paris from 1815 to 1850", he was buried in Paris on 13 August 1830.
Awhile ago I found a site which may be of interest: The Association of Friends of the Waterloo Committee.
It has an "Update on the Waterloo Register" being compiled by David Milner, to register people known to have been at Waterloo, or even who may possibly have been there.
http://www.waterloocommittee.org.uk/coming_events.htmlThere is also a Register of Memorials being collated for publication by Janet and David Bromley.
http://www.waterloocommittee.org.uk/reg_memorials.htmlCheers,
Julie.