The C diamond 1 brand that Sandhills uses today was passed on to Prue from her late mother. It was originally the brand of her father’s family from Gayndah Qld. Prue’s mother, Jennifer Cribb (nee Young) was the daughter of Charles Young who established the Barolin Pony Stud. Jennifer Cribb had a passion for jumping and eventing and with 3 daughters desperately wanting to ride, established a Connemara Pony stud. As the daughters grew taller, she redirected her breeding program towards the performance horse. She had great success and some of her horses include:
- Carmody St who represented Australia with Felicity Cribb at the World Equestrian Games at The Hague, Saumur in France as well as competing at Badminton and Burghley in the United Kingdom.
- Cadenza a Grand Prix dressage horse competed by Lea Biermann.
- Harvest Moon a Grand Prix dressage horse competed by Brett Davies.
- Waitaki a stallion who sold very well in 1990 as a 5yo to be an eventer.