I've heard of someone named Halley, but it was pronounced like
Haley with a long a, rather than a short one like it should be with a double consonant.
As a kid I always thought
Emil was pronounced EM-il, like
Emily but without the final ee. I still only like it that way, even though it's wrong. I'd never use it anyway so it's not a big deal.
Your
Chloe story reminds me of how I heard a family member of mine pronounce
Zoe as ZO the other day. It didn't hit me for a second that she hadn't said the ee, but I never said anything. It's going to cause a lot of trouble to mispronounce a common name!
Chloe is going to get her name mispronounced correctly for the rest of her life!