It's likely you're referring to James Fenimore Cooper's "The Littlepage Manuscripts". This is a trilogy of historical novels that are actually part of a larger series called the "Leatherstocking Tales" or the "American Democrat" series.
The three novels in "The Littlepage Manuscripts" are:
* "The Redskins" (1846)
* "The Chainbearer" (1845)
* "The Pioneers" (1823)
These novels are set in the 18th century and follow the lives of the Littlepage family in the Mohawk Valley of New York. The stories deal with themes of land ownership, social hierarchy, and the changing nature of American society.
Let me know if you have any other questions!