Here are some sources that I found while researching Green Island yesterday were of no use to be then but definitely some gems for your article but this page  might be a good addition as it adds notability with mentioning a tiein with an actual person that is represented in The Last of the Mohicans page  and  here is also relevant here is more in depth info on the selling of the land and the natives names A book I have might be good The MohawkHudson Gateway I believe is the name if you can get your hands on a copy at the library instead of buying it