Jerasa Mahogony Marquetry of Delfleet is Bob's Grandfather.
We saw him when we went to choose Bob. His pet name is Bourneville and he is a lovely, handsome chocolate roan.
If you have a look in the pet Owners Guide to the Cocker Spaniel book by Frank Kane he is the chocolate roan dog pictured throughout the book. There are some particularly good ones of him retrieving a dummy from water.
The Delfleet affix is from Sutton Bridge in South Lincolnshire.