[Immerito]

As I recall, the movie made it clear that Seabiscuit was born on a horse breeder’s farm, but was sold because he did not perform as expected.

I didn’t know that he and Man O’ War were so closely related.

[Nepeta]

As I recall, the movie made it clear that Seabiscuit was born on a horse breeder’s farm, but was sold because he did not perform as expected.

This is where Seabiscuit was foaled:

http://www.claibornefarm.com/

It is one of the very last family owned farms that has been run continuously for generations. In the 1930s, Wheatley/Phipps boarded there, and still do. Seabiscuit didn't just begin life at a breeding farm. He began at one of the best in the world.