I am glad if I gave you some help.
In the french west indian directory, there are 51 people named CARTY.
Most of them (35)live in ST MARTIN (This island is part dutch ST MAARTEN/ part french ST MARTIN), the rest live in GUADELOUPE.
In the french part of ST MARTIN people speak french and english or they understand it.
In the dutch part, people speak english.
When I was younger I knew a baker in GUADELOUPE whose name was CARTY.
Puedo leer y escribir en espanol tambien si usted prefiere