I am doing research on the Battle of Teugn Hausen( Battle of Thann) and after searching through all of Martinien officer casualties for the 3rd Corps I found a name that confused me on page 811. Captain Bonnescuelle was wounded at Combat de Thann April 19th 1809 but served with 25e Leger which according to OOB was not present. My first thought he was an aide de camp but according to Martinien work Capt. Bardout, Lt. De Montmorency and Lt Maussion were wounded. My question is does anyone have a reason why he was present at this battle and if his service record is available.

Thank you for your help
Michael