Look up Presentation Stables....Presentation Stables - Horses for Sale
If link disappears PM me and I will e-mail it to you.
Or you can type in search engine the stallions name with Saddlebred horse and find videos of his get.
They apparently have the stallion it seems? And have seen one they had listed by both of the two horses you are asking about.
I will ask my friend who trained for 35 years in this area, to see if she knows anything about these people, or horses. But would imagine they were just "horses" rather than show horses.
Everything I am finding out of this stallion looks to be owned by "racking horse people" but again, will ask her today about the names of these "trainers" to see what she knows.
As for size? Measure ergot to elbow, elbow to withers and you will get size yours will reach, if that is what you are wanting to know.
There is a John Orr and a Roger Adams tied in with Presentation Stables...so not sure which trainer is there now.
But if you call them, they can tell you who the sire/dam is out of and then I can help you more, IF those horses are out of good stock that is.