Boston Marrow is a c. maxima. As I understand it, the c. maximas were brought into that area in the 1800s. So that's probably not going to be of interest to you. Yellow Crookneck summer squash, and the jack O'Lantern type pumpkins are original to that region. I remember hearing how the survivors of the first New England settlement ate so many of the orange type pumpkins that it took generations for them to shake off the idea that those were the best, when in fact, there were other squash of higher quality.
zone 6b, rocky clay, slightly acidic soil, summers here are HOT, average first frost Oct 18, last average frost April 15. Temps here fluctuate wildly in the spring, fall and winter.