Walker was born in American Samoa to a New Zealand father and Samoan mother from a chiefly family. At age 10 she attended
St Cuthbert's College in Auckland carrying "only a suitcase and a ukulele". She was a talented pianist and composer later going on to teach music and eurhythmics at St Cuthbert's. She was the author of many peace themed songs and books for children. She married traveling salesman Bill Walker. Bill caught tuberculosis during
World War II while serving in the Pacific theatre and had to spend five years in hospital in Auckland and later
Hanmer Springs. Consequently, Walker had to raise two young children by herself while her husband was having treatment. After introducing herself to Sir
James Hay, she became a fashion co-ordinator at Hays Department Store. She worked with buyers and also organised fashion parades. In 1952 the family moved back to Auckland and took up a similar role at Milne & Choyce. She was the first Auckland city councillor of Pacific descent. She served two terms as a councillor until 1980 when she did not stand for re-election. From 1973 and in 1976 Walker was the founding president of
Pacifica Inc, a nationwide Pacific women's organisation. She then joined the Pan Pacific South East Asian Women's Association in 1975, and was later their Peace Ambassador. She was involved in creating "peace gardens" in several countries including the
Cook Islands, where she later lived after retiring in 1989. In 2009 she was one of 1000 "peace women" globally who were nominated for that year's Nobel Peace Prize. ==Recognition==