Thoughts on Sophie’s dad?

I have therories on who her dad is. In one book (I don't remember which) Forkle says they don't know each other and since SPOILER we know her mom is Orile we know almost everyone knows her. So my theory is that her dad is a human. And the human I think it is may be Ethan Arnold Benedict 111. I don't think I spelled either name right so I am very sorry but what are your thoughts?