[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1918/788 (Reliability: 3), 9 Mar 1918.
Thirkell Walter Fred; Mother Florence May; Father William Ernest Leonard
[S293] BDM NZ Historical Records, (http://www.bdmhistoricalrecords.identityservices.govt.nz/home/), 1993/37257 (Reliability: 3), 17 May 1993.
Thirkell Walter Frederick 9 March 1918
[S10] Marriage Register Index , 1941/01135 (Reliability: 3).