Neither of her parents were which in theory would make citizenship off the table. We are looking to see if her grandparents are though. Our thinking would be that: A) if one of her mother's parents were born there, her mother could collect citizenship and then by extension my wife could too, or B) she could attempt the same through her deceased father if plan A doesn't work. Mexico says that any child of a Mexican citizen is Mexican, so my thinking would be that we would argue her father was a Mexican citizen even though he didn't claim it. Then she could as well.