A Talbot is an extinct snow-white hunting dog, so large and skilled (by way of its keen sense of smell), that it was rumoured to be able to bring down a horse in wintertime.
No, Connie Talbot of Britain's got talent fame is the daughter of Gavin and Sharon Talbot. They live in the UK. I think the Crocodile Hunter was Australian. See Connie's wikipedia page for more...
John Talbot, 1st Earl of Shrewsbury was an important English military commander during the Hundred Years' War, as well as the only Lancastrian Constable of France.