Spiess, Mathias. The Indians of Connecticut. New Haven, CT: Yale University Press, 1933.

Mathias writes about Connecticut natives in pre-contact times in relation to dominating outside tribes, and then describes the history behind the different English settlements in the Connecticut and Farmington River Valleys. The author tries to connect each tribe, and is one of the only authors so far who have claimed the Massacoe had absolutely nothing to do with the Tunxis natives.