To be honest, inviting 65 kids to a country club is just a horrible idea in the first place. Who wants to drop $5K/yr to belong to a country club when they let 65 kids bombard the pool? White or black, its a bad idea to start with.
I've golfed at the Philmont, which is right next to this, and have seen this pool. An influx of 65 kids would literally fill it because it isn't that big.
Bad idea by the club, and a situation that could have been easily avoided. To me, it seems that race wasn't the issue here (regardless of a few overheard, snide remarks by the members), it was the number of people.