Name from Muriel Leo’s (nee Oliver, 1917-1998) Family Tree.

Divorced from Richard Leigh Andrews. Richard is the great-grandson of Francis Oliver b.1840 through his daughter Alice Bertha Oliver.

Second given name, occupation, from New Zealand Electoral Roll - Eden Composite Roll 1981, found in June 2020:
Christiansen, Christine Joy, 34 Dexter Avenue, Nurse
Christiansen, Murray Keith, 34 Dexter Avenue, Chemist

Christine’s parents (?), from New Zealand Electoral Roll - Stratford Main Roll 1972, found in June 2020:
Astwood, Christine Joy, 36 Stafford Street, Waitara, Nurse
Astwood, Florence, 36 Stafford Street, Waitara, married
Astwood, William, 36 Stafford Street, Waitara, pensioner