No mention in the story. For all we know she's a widow.
He was asking, "why not the mention of a father." The omission implies fathering is incidental and irrelevant -- which is true enough in the minds of the thoughtmakers of our day, but not in Laws of Nature.
Great accomplishment, no doubt. I've long thought that a woman can do just about anything a man can do, at least as well as a man can.
But does that mean she should? I guess all those missed birthdays were worth it, eh. Hopefully thoughts of you got them through.