Funny you brought this up. I was at the post office wanting to take a look at the new stamps coming out this year. The clerk (who is Latina) showed me the page that had the stamps. I was pretty excited to see one being issued of the Negro Leagues Baseball.
I said, "I love the Negro leagues one". She said, "I was going to ask my supervisor why they had it listed as Negro leagues. I didn't think it was correct, and I didn't want to offend if someone asked about the stamp".
I broke it down, gave her a brief history of the league and told her it was cool. So if the book was written in 1950s or 60s, no biggie.
In fact, I had to get a certified copy of my birth certificate from the state of Florida and yes, my race is listed as Negro on there. Yeah, I was amused

DH was floored