We revisited the park this evening but with new eyes: I learned that the trees were more or less “original,” or probably a century or 2 old! I looked at the 1976 Wisconsin historic landcover map, and learned that Paul’s grandparents’ suburban yard was likely originally sugar maple, basswood, red oak, white oak and black oak forest (probably intermingled with red and white pine). So, the park was a nice glimpse of what Paul’s grandparents yard could have looked like pre-settlement.