Mid 1960's at a 1/2 mile horsetrack at the Lincoln Illinois Fairgrounds. It was a Sunday afternoon race and all the central Illinois drivers were there and several from Missouri including a couple of the Weld's. The track had a white board fence around it and by the end of the day most of the fence had been destroyed. One guy went thru the fence between turns 3 and 4 and did a doughnut outside the track and came back through the same hole in the fence and rejoined the race. It was a great race but saftey conditions were non existent. If I recall the ambulance was just station wagon. The racing was great and I was sold.