I'm in my 20s and from Australia. I have been interested in supercentenarians since Christmas 2006, when I got the 2007 edition of the Guinness Book and saw the entries of Maria Capovilla and Emiliano Mercado del Toro.
- Expanded Waka Shirahama and Gengan Tonaki.
- Created Andrei Kuznetsoff and expanded Tase Matsunaga, albeit via copy-pasting from Wikipedia.
- Created Kayo Fujii, albeit using info from a less reliable source (the Japanese Wikipedia).