Sanz21 on Family Tree Circles

Looking for information on my grandparents Arthur George Dennis, married to Madge Adelaide Dennis (Badrick) Arthur died in 1943 and Madge died in 1969, both in Rangiora, Christchurch New Zealand. I have found names of Arthurs parents but nothing on my grandmothers side. My mother was Patricia Audrey, daughter to Arthur and Madge and she has brothers, but i have no other imformation. I would like to go as far back as I can, finding birth places, cousins, aunts and aunts if possible.