Des Moines NewsAugust 6, 1915
WINNING PILOTS GET $10000
First prize................$5000
Second prize............$2000
Third prize...............$1000
Fourth prize...............$600
Fifth prize..................$500
Sixth prize..................$400
Seventh prize..............$300
Car leading at the end of 100 miles....$100
Car leading at the end of 200 miles....$100