I've just noticed that the National Archives have transcribed the crew lists for all the ships that fought at the Battle of Trafalgar as part of the 200 year celebrations. This is now on line and searchable, so you can see if you are related to anyone!! I've done a quick search and the nearewst I get is 2 THOMPSONs born in Bristol ...but it isn't exactly a rare name round there!! Good Hunting Marilyn