JD Kirk lives in the Highlands of Scotland with his wife, two children, and a number of sturdy umbrellas. He also doesn't exist. JD is, in fact, the pen name of award-winning author, comic book writer and screenwriter, Barry Hutchison, who also, coincidentally, lives in the Highlands with his wife, two children, and the aforementioned umbrellas.
He has no idea what the 'JD' bit stands for.