Name found in August 2022 from newspaper article about daughter Christine (Chris) Carrell:
https://www.odt.co.nz/news/dunedin/antiques-roadshow-declared-success
"Dunedin resident Chris Carrell was pleased to learn more about an old camera which her late father, Signalman Colin McCorkindale, had taken with him as a member of the Second New Zealand Expeditionary Force, when he had served at Monte Cassino, Italy, during World War 2".