Jack Davis may refer to: Wikipedia
Jack Wells Davis (September 11, 1930 – July 20, 2012) was an American track and field hurdler, silver medalist in the 1952 and 1956 Olympics over 110-meter hurdles. Davis lost to Harrison Dillard in 1952 with the same time as the winner, and lost to Lee Calhoun in 1956, again with the same time as the winner. He set a new world record 13.4 in a heat at the AAU in 1956. Wikipedia