I actually did see a pic of Bernice in one of the later cartoons after I did my discussion of the figure. I really wasn't a fan of the cartoons after Flesicher.
Jeep was never paired with Castor. A better accessory would have been a big bag of money because Castor was always coming up with get rich quick schemes and was always successful after rubbing the magic hairs on hen's head.
I'd have to read my books to see if Castor and Jeep ever crossed paths. I think Segar had phased Castor out by then. I guess they just needed someone to include Jeep with.