the yellow flag to wave off the start. An extra pace lap was allowed, and the front row re-took their position at the front of the pack. By the time Hanks was ready to pull the pace car back out on the track, the field had re-formed, and Vanderwater gave them the green flag. At the start, Dick Rathmann took the lead in turn 1, Ed Elisian was second, and Jimmy Reece third. As the cars battled into turn three, Elisian spun and took Rathmann to the outside wall, triggering a huge 15-car pileup. Reece braked and was hit from behind by Pat O'Connor. O'Connor's car sailed fifty feet in the air, landed upside down and burst into flames. Several other cars spun to the wall and into the infield. Jerry Unser touched wheels with Paul Goldsmith, and flipped over the outside wall. Unser suffered a dislocated shoulder. Although O'Connor was incinerated in the accident, medical officials said that he was probably killed instantly from a fractured skull. Widely blamed for the accident, Elisian was suspended by USAC for the accident (reinstated a few days later), and was shunned by many in the racing community. Following the accident, race officials announced that they would change the starting procedure, abandoning the single-file trip down pit lane that was used in 1957 and 1958. Also, for the 1959 Indy 500, metal roll bars welded to the frame behind the driver's head were mandated, and helmets were required to pass safety certification by Speedway medical officials. First half Jimmy Bryan escaped the opening lap crash, and came around to lead the first lap. Eddie Sachs and Tony Bettenhausen also got by unscathed, to run second and third. Due to the crash, the yellow light stayed on for 25 minutes (approximately 18 laps). Four of the top five starting positions were out of the race from the crash, including polesitter Dick Rathmann, who placed 27th. After a lengthy cleanup, the green flag came back out around lap 19. Bryan, Sachs, Bettenhausen, and rookie George Amick all traded time in the lead. There were 14 lead changes in the first half. The second yellow came out on lap 38 when Chuck Weyant crashed in turn 4. Eddie Sachs, a contender in the first quarter of the race, dropped out on lap 68 with transmission trouble. Second half The second half of the race settled down