[2] Walter was educated at the University of Glamorgan in Wales, graduating with a master's degree in engineering.

[3] In 1998 he was appointed deputy general manager for the Samoa Electric Power Corporation, before becoming chief executive from 2003 to 2011.

[5] At the 2008 Summer Olympics in Beijing Muaausa finished his ranking round with a total of 563 points, which gave him the 64th seed for the final competition bracket in which he faced first seed Juan René Serrano in the first round.

[7] He represented Samoa at the 2007 South Pacific Games in Apia, winning silver (alongside Andrew Ah Liki and Tuala Oli Ah Him) in the team competition[8] and bronze in the individual recurve.

[9] At the 2017 Pacific Mini Games in Port Vila, Vanuatu, winning silver (alongside his daughter Jil Walter) in the mixed team recurve.