Any idea who Jimmy is?
One parent is easy, the other more tricky. Hence I will issue a clue straight away.
One parent might be a bit busy at this time of year herding Rudolph and his mates....
Send your best guess to firstname.lastname@example.org
More clues on Twitter if no one gets it correct!
First correct answer wins a doggie book of your choice from the Interpet range - either breed books or general books.