I haven't Googled
Sylvia Likens, and I've never heard of her.
What I do think of is that silly little vintage pop song where the guy is phoning from a call box which keeps on eating his money, desperate to say Goodbye to
Sylvia, but her awful mother won't let him!
Pity about both, and about a
Sylvia I was at school with, who was very pleasant but very slow and had massive problems with BO. Objectively, it's an elegant and beautiful name.