U.S. Thanksgiving dishes different than in Canada

I just wrote to my cousin in Canada that today I was preparing for the biggest family day in the U.S.; namely, Thanksgiving Day.

Some Thanksgiving Day dishes I never made nor saw while growing up and living my early adulthood in Canada are:

* Green bean casserole sprinkled on top with canned, crisp onions
* Cooked carrots and rutabagas mashed together and flavored with butter
* Sweet potato casserole with marshmallows and brown sugar on top

Or is it that these are mainly Southern delicacies? And, perhaps, now that I live in the South, these dishes are what Southerners cook and eat as part of their traditional Thanksgiving Feast.