My name is David Dawson and the year is 1939. I am on my way to a race track in Ohio. I have a pickup and a two horse trailer. I have two horses that are sound enough to hit the board at the cheap tracks where I race. I manage to win a race often enough to keep me in feed money.The problem I have is keeping them fit. They spend most of their time in the trailer and on the road. There is no time to exercise them. The track I am headed for today is...