↑ "Births, Deaths & Marriages Online", [digital index], New Zealand Department of Internal Affairs (www.bdmhistoricalrecords.dia.govt.nz), Birth Registration of Ethel Izona Mulford, child of Albert and Mary Jane Jackson ; citing Birth Certificate 1895/7321 .
↑ "Births, Deaths & Marriages Online", [digital index], New Zealand Department of Internal Affairs (www.bdmhistoricalrecords.dia.govt.nz), Marriage Registration of William Andrew Smythe and Ethel Izona Mulford ; citing Marriage Certificate 1917/4779 .