Walter, son of Matilda and Charles Edward Maddison.
Walter worked as a Driver in Wellington.
He passed away age 65 and was cremated at Karori cemetery
Sources
"New Zealand, Civil Records Indexes, 1800-1966," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q24K-JQVD : 27 November 2017), Charles Edward Maddison in entry for Walter John Maddison, 1891; citing Birth, New Zealand, registration number 1891/2861, Archives of New Zealand, Wellington.
"New Zealand, Civil Records Indexes, 1800-1966," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QG6K-STC6 : 4 January 2018), Walter John Maddison, 1957; citing Death, New Zealand, registration number 1957/24960, Archives of New Zealand, Wellington.