Dear Mr. Collis,
First off: WELCOME! This is a great group (thanks to Mr. Burnham et cie.).
Second, you may wish to consult:
- the memoirs Wacholtz wrote: "Aus dem Tagebuch...", pub'd 1843.
- the history of the Braunschweig Inf Regt by Kortzfleisch: "Geschichte des Herzoglich Braunschweigischen Infanterie–Regiments" 1896.
Both are available on Google Books.
There are doubtless others as well that our Noble Colleagues here will uncover.
Welcome again!