Long shot, but COTH has helped me before in this regard...
added info - was bought via Dreamhorse: Lisa Mitchel Foxfield farms
I am training a lovely Oldenburg/TB cross named Willoughby. I have some history, not all. Guessing a 2005 model, owner bought him in Leesburg, VA close to Morven Park about 4 years ago as an almost 4 year old - which makes him just 8 now. The folks in Leesburg got him from a farm in New York. I'd love to know if anyone recognizes him, as far as I know, the name is the same.
He is bay, very unique wrench shaped blaze. Low socks on all legs except for left front (no white) Apparently was accident prone as a youngster, damage to his left eye that left a bit of a haze (can see fine) and had a run in with a stick He is also missing a front tooth (he's not allowed to open his mouth at shows
He is an absolute character - and just the best temperament. He was slated for hunter life - but was so lazy that the owner couldn't get much out of him. I've been retraining him for dressage - he has a bit of talent and is a nice mover.