I didn't see anywhere in the article mentioning she wants to convert to a protestant denomination. In fact, the article talks about the dad who converted before her and mentions "The judge said it was wholly wrong for the mother to go to court without discussing it with the father or his priest." If the father's pastor is a priest, then he's probably Catholic, or possibly (though unlikely) Orthodox.
“If the father’s pastor is a priest, then he’s probably Catholic, or possibly (though unlikely) Orthodox. ‘
Or Episcopalean (sp?).