The choices for my world Hall of Fame for 1909 are:
Zoltan Halmay (Hungary – Swimming) – won two gold medals at the 1904 Olympics and another at the 1906 Intercalated Games. He won a total of nine medals in his Olympic career including the 1906 Games (seven without the 1906 Games). He set world records at 100m and 200m freestyle.
James Lightbody (USA – Athletics) – Winner of three gold medals at the 1904 Olympics including the 800m/1500m double. He also won a gold at the 1906 intercalated Games at 1500m. He won six Olympic medals in total (two at the 1906 Games).
Joseph Martinez (France – Gymnastics) – won the inaugural world all-round gymnastics title in 1903 and a total of five golds at that event (four in individual events). In world championships he won a total of five more golds in 1905 and 1909 with three of those in individual events.
Louis Richardet (Switzerland – Shooting) – Won a total of eight medals at the Olympics (six of them at the 1906 intercalated Games). He won two golds in the 1900 Games and three in 1906 (two in individual events).