Who was the tallest jockey to ride in the Kentucky Derby?

Currently the tallest competing male jockey is Richard Hughes from the UK who stands at 5'10"

However, Manute Bol, a former Basketball player who stands at 7'7", recently did a "stint" as a jockey for a charity event.

Also, the current tallest female jockey is Louise Moeller from Denmark at 6'1", but she only weighs in at 112 lbs! that's hardly a heavy load for a horse.