The "S" was an error in The Quest. S, for stallion, was just carried over by mistake. So, his registered name is Gladstone. I am the breeder and owner. We are expecting seven foals by Gladstone this season. Three are here. The thing I love about these foals, besides their being so pretty, is they all have four black feet, and a small star. When they are grown they will all be different colors, but, right now, it is hard to tell them apart.