Jerry Unser Jr.

Jeremy Michael Unser Jr. (November 15, 1932 – May 17, 1959) was an American racecar driver. He was the 1957 USAC Stock Car champion.
He died in a practice crash before the 1959 Indianapolis 500 on May 17, 1959.
His brothers Al and Bobby and his nephew Al Jr. have won the "500". His son Johnny and nephew Robby have also competed in the race.