Vito Dumas - first yachtsman to sail alone around the world

Joshua Slocum was first, of course - but he was not a yachtsman.  Vito Dumas of Argentina rounded the great capes - Good Hope, Finisterre, and Cabo de Hornos in a 32 foot ketch - almost 70 years ago.  Classic Boat has this tribute.
h/t Jess Fradkin