Owned by a dog dealer named Charles (Doggy) Lawrence, Jack's date of birth is unknown with an inbreeding coefficient too low to be measured. Jack was known to have had a long silky coat. He was a singleton puppy with 3 full siblings. none of which were champions. There were no half siblings on his sire's side and Eng. Ch. Tobit was the single half sibling on his dam's side. Jack was bred only once, to Darkie, producing The Artful Dodger.