Nancy Boyle
Nancy Irene Boyle was an Australian sprinter who was the holder of the women's 400m world record.
Career
Boyle achieved the women's world record for 400m on 24 February 1957 of 56.3 s in Sydney in a 440 yards race.Boyle placed fourth in the 220 yards event in 1956, 1958 and 1960, and fourth in the 100 yards event in 1956 at the Australian Track and Field Championships.