Iron sounds suitably male, Maiden not so much, but then in Spanish middle names of the opposite sex aren't rare. Even in Germany with its restrictive name rules your first and middle name can be "Klaus Maria" as a male. Only the first name has to unequivocally determine the sex, that is why, say, "Kim" isn't allowed in Germany as a sole first name for either boys or girls, but you're allowed to name your kid "Kim-Eva" or "Kim-Adam". ("-Eva" and "-Adam" are then part of your first name, not middle names.) I would imagine that the transgender issue will probably change that naming law in the not too distant future where people will not want to have their gender recognized by their first name.
Female names as second names is pretty much unheard of in Anglo-American naming practice, right?
Alice Cooper excepted, of course. Ole Vince even has that in his passport now.
I always loved the lyric to "A Boy named Sue", but then I'm a Shel Silverstein diehard, the man never wrote a bad lyric in his life, he's a John Steinbeck of lyric writing to me.