Two books you need to get. "Colonial Frontier Guns" by Hamilton and "The French trade gun In North America" by Gladysz. Dutch trade guns were distributed in the North East and that's about it. I have one. The French got there stuff as far as Texas, Oklahoma, Missouri,Minnesota, Wisconsin for Western areas and all over the South east, South and New England and of course Canada. I have no doubt they were traded in the area you're interested in but I don't think there is any archeological evidence to support it.