Dad called me Kate, mom called me Katie. No one knew how to pronounce or spell "Caitlin" Dad got it from James Steven's "The Crock of Gold" and said it was actually pronounced Cathileen Like Shawn- or Sean- you know those Irish names!
Now it is the most common name around- if you count all the different spellings. In the library or the grocery store, I hear people say "Katelin" and I turn around- and its a youngster being called by a mom!
No one around my age with the name......