Okay, I'm amazed you caught that "Pony" error too. That's some serious in-depth Missouri Civil War trivia there, John. "Pony" Boyd was in fact Sempronius Boyd, Colonel of the 24th Missouri Infantry. He parlayed a prominent campaign into a Congressional seat midway through the war. With a high-falutin Roman patrician name like he had, its not hard to see how it came to be "Pony." I did a good bit of research on him 20 years ago and actually have an unpublished manuscript I wrote on the politicking Pony did in regard to that military campaign that vaulted him into the U.S. House of Representatives.

As I recall Marcus and Sempronius were brothers.