A goal keeper and goal defence, Annan was noted for her tight marking.
She represented both Otago and Canterbury at a provincial level, and played three games for the New Zealand national netball team in 1960.
Her granddaughter, Abby Erwood, also a netball player, made her debut for the Southern Steel in 2015.Annan died on 27 March 2017, and was buried at Alexandra Cemetery.