For John, BLUF: As you say, times change and meaning changes. Nothing to see here; just move along.
At the Nate Silver FiveThirtyEight Blog♠ we have a discussion of the Washington Redskins imbroglio. The headline is "The 2,128 Native American Mascots People Aren’t Talking About" and the author is Ms Hayley Munguia. While the article mentions Natick High School, it does not mention Tewksbury High School (Redmen).
Of course none of this gets to my point that the most offensive naming in these United States is where US Route 1 is named after that despicable President, Jefferson Davis.
Regards — Cliff
♠ As in 538 votes in the Electoral College.