Yolanda is a very old name, not one of the made-up names common today. Lots of European royalty for centuries have been named Yolanda or variations of it.
You’re right. I am aware of some very old ladies (most have passed away) named Yolanda.
But this particular Yolanda is probably under 50 (police retire early) and ALL of the under 50 Yolandas I have heard of are black.