[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1905/19457 (Reliability: 2).
1905/19457 Simpson William Edward; Mother Ethel; Father Herbert
[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1989/48723 (Reliability: 2).
1989/48723 Simpson William Edward Born 14 September 1905
[S10] Marriage Register Index , 1930/02040 (Reliability: 3).