[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1913/17805 (Reliability: 3), 01 Aug 1913.
Challis Gordon William Bertram; Mother Annie; Father Thomas Bertram
[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1990/50129 (Reliability: 3).
Challis Gordon William Bertram born 1 August 1911
Birth Date is incorrect birth is registered as 1 Aug 1913
[S10] Marriage Register Index , 1915/1149 (Reliability: 3).