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 7 might be a good addition as it adds notability with mentioning a tie-in with an actual person that is represented in The Last of the Mohicans. page 62 and 63 here is also relevant. here is more in depth info on the selling of the land and the native's names. A book I have might be good, The Mohawk-Hudson Gateway I believe is the name, if you can get your hands on a copy at the library instead of buying it.