Hi Linda and Sophie,
My Mother was born Joan Alison Housiaux in Nelson, New Zealand on 11 March 1922. Her Father was Leonard George Housiaux. He came to NZ from Belgium via England in about 1908. About 1946, Leonard's older sister, Minnie, whose husband was killed in the war, came to NZ and lived with her brother the rest of her life. Another older sister, Veronica, had come here some time earlier to live in Auckland and married a New Zealander. Leonard's older brother, Joseph A. Housiaux went to America, and was last known to be in Long Island, New York.
The names Alison, Joseph, Mary and Bernard keep showing up throughout the family here, but with various spellings.