[S10] Marriage Register Index , 1931/02209 (Reliability: 2).
Mavis Adele Coster
[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1909/19925 (Reliability: 3), 13 May 1909.
Coster Adele Mavis; Mother Mary Jane; Father James
[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 2004/19358 (Reliability: 3).
Coster Mavis Adele born 13 May 1909
[S10] Marriage Register Index , NZ 1931/02209 (Reliability: 3).