SQUASH FOR THANKSGIVING I tried to find what kinds of food were served at the “First Thanksgiving” celebrated between the Plymouth Pilgrims and the Wampanoag tribe of Native Americans in the fall of 1621.  But we have only a couple of brief passages about the feast from the Pilgrims.  Venison and lobsters were for sure on that menu and maybe even turkey, since there were plenty of wild ones in the neighborhood.  Plus fruits indigenous to the region:  blueberries, plums, grapes, gooseberries, raspberries and, of course, cranberries (but not as a relish). And squash.  Squash is native to North America,...