Yes I learned from my grandfather and my mothers oldest brother about 46 years ago
Try about 3 ears choose 1 you think about right one you think might be too young and one
that seems a bit too hard.. Cook and see how well you did after a couple attempts you should do GOOD.
Yes for Three Sisters you NEED to use a tall corn (ie Flint/Dent)
The Indians grew meal corn not sweet corn
I for one prefer roasting ears from dent over sweet any day
Yes cucumbers or zucchini even can be used for the squash
Good Garding