Sterling ring with Lapis Lazuli: who is M.L. Perry?

Does anyone know who this jewelry artist is? "M.L. Perry" and "STERLING" is stamped in this lovely little ring I found while metal detecting. I believe it is sterling silver with a lapis lazuli stone. It's a bit bent up, but should be easy to repair.

A web search suggests that the artist is Navajo, but I have no other information on the artist. Help!