Another good research link: http://genealogybooklinks.com/
In navigating to the “C” surname section, I found an online copy of the “Clough and Chamberlin family records; descendants of John Clough, 1635, and Henry Chamberlin, 1638” by Anna E. Armstrong that I had not seen before.
The only downside of HathiTrust is that while you can view the entire document, unless you’re a partner, you cannot download the entire work. Instead, you’re limited to one page at a time. Perhaps a small price to pay…
MLA citation:
Armstrong, Anna E., 1861-1946. Clough And Chamberlin Family Records: Descendants of John Clough, 1635, And Henry Chamberlin, 1638. 2nd ed. with revisions. Shushan, N.Y., 19351938.