I just saw your post. I am a member of an ELMS family from Wexford Co,Ireland just north of Waterford.My great grandfather was born there but migrated to Texas.His baptismal certificate has his name listed as ELEMS. When visiting with some of his sister's descendants remaining in the area, I found the name was spelled ELMS but written at times as ELEMS. One lady told me that in Ireland going to the movie theater/cinema/films was stated as "going to the FILMS" but pronounced as "going to the FIL-UMS."So, it follows that the name Elms can be pronounced EL-LEMS in Ireland. So, I advise you also to check that spelling.