Claus,
I thought of you when I found this information. In January of 1781, Hessians working for the British attacked present-day Spanish Fort, Alabama. I'm studying this battle right now and found that when the Hessians arrived in Pensacola they found a fellow German who had gone off and lived with the Indians. Imagine the story that guy could tell! I'll give the link to where this info comes from.
http://thefrigatesouthcarolina.weebly.com/
 (Note: A curious, and somewhat bizarre, episode occurred to the members of the 3rd Waldeck Regiment after they had landed in Pensacola, FL and begun to familiarize themselves with their surroundings.  According to Lowell's work, The Hessians, page 252, "among the Indians the Waldeckers found a countryman of their own, one Brandenstein, who had deserted in his youth from Waldeck service, and after many adventures had assumed the manners and the costume of an Indian warrior."  The work of von Eelking, German Allied Troops, page 220, confirms the same experience by the Waldeck troops in Pensacola, though in slightly different terms: "among these savages, to their great surprise, the Waldeck soldiers found a countryman, from one of their own villages, Konigshagen; he had deserted from the army as a youth, and finally joined the Indians, serving as interpreter - his name was Brandenburg, and he was as little of a Christian as his Indian comrades."  Hopefully, further research can answer the question as to exactly how a Waldeck youth would have been capable of deserting and reaching tribal peoples in the vicinity of Pensacola, FL and blending in with them, only to reveal himself to his newly-arrived Waldeck countrymen years later, thus creating for himself the risk of being arrested for desertion.)

Best, 
r