Descendants of Joseph and Jennet Thompson of Colrain, Mass

I am writing a book about my dad's family and I am searching for information, photos, documentation. 

We descend from Joseph and Jennet Thompson, and as follows, their son:

Hugh Thompson

Hugh McClellan Thompson

William Patterson Thompson

Allen Ephraim Thompson

Walter Thompson

Leland Clair Thompson

Maynard K. Thompson

I am particularly looking for information on the 3 Thompson men who moved from Colrain, MA to the Nunda, NY area.  These three were Hugh McClellan Thompson and his two cousins Robert Thompson and Luther Thompson. What brought them to Nunda, NY, where did they live, etc. etc.  

Any assistance would be greatly appreciated!

Gail