Jon Henricks set the 100-metre freestyle world competitive record (excluding time trials) of 55.4 seconds at the 1956 Melbourne Olympics.
Sources
- The science games — ABC Science Archive (abc.net.au)
- https://www.olympics.com/en/athletes/jon-malcolm-henricks (olympics.com)
- https://www.olympedia.org/athletes/45218 (olympedia.org)
- https://sahof.org.au/hall-of-fame-member/jon-henricks/ (sahof.org.au)
- https://ishof.org/honoree/honoree-jon-henricks/ (ishof.org)
- https://www.stateofswimming.com/happy-80th-birthday-lance-larson-sub-minute-butterfly-pioneer-who-triggered-the-timepad/ (stateofswimming.com)
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