Thought about this for a while before throwing my oar in the water. The dog that keeps coming to mind is 'Fruchey's Ladybug'. ESB Out of a breeding done by Andy Eaton, (Missouri's Turnto Prince X Andy's Lady Zev). Owned by Wayne Fruchey, She was as tough as they come (that may be an understatement) and could stick grouse. Looking at old photos and notes, Lots of them. However her claim to fame was producing the Ch Ghost Train (Grand National 1969) (Fruchey's Ladybug X Samson Montcalm) and as they say, the rest is history..