Old family names hang on FOREVER... 3 of the 4 Selina's alive at my birth are now long gone, but one still lives, and another WAS born a few years after me, so 2 are still alive. The one born a few years after me is the last, though, nobody in our generation used it on their first born girls. I'm not close to that side of the family, so I don't know if the last Selina has a grandchild yet or not, and I don't really know the generation after me, so I don't know if that side will continue the name or not.
I had my girls in the 80's - a time of crazy spellings for normal names, and crazy names, and I decided I would go nearly plane Jane, so of course, in any class room, Brownie troop, or sports group, there were MULTIPLE Sarah's, Katy/Katie/Katee's, and Elizabeth's. One Brownie group had 4 other Katy's AND 2 other Sarah's, and hardly any anything elses, it was nuts...