Well, buckle up fans: Herb Elliott was still alive as of January 21st, 2019, when this answer was written. He is eighty years old. His birth name is Herbert James Elliott, but he goes by Herb Elliott for his sporting events.
He participated in a lot of running events in Australia, and is considered the greatest middle distance runner for the era during his competitions. He clocked many fastest times over his long athletic career. He won gold in the 1960 Rome Olympics, and even bet his own time at that point in his career.
For anyone who wants to know, the height of his career was from 1957 to 1961, where he never lost a 1 mile race or a 1500 meter run. Impressive!