First given name, initial of second given name, occupation, from New Zealand Electoral Roll - Te Atatu Main Roll 1978, found in July 2025:
Cochrane, John F, 57 Sylvan Crescent, Sales Exec
Cochrane, Colleen J, 57 Sylvan Crescent, Married
Cochrane, Stephen George, 57 Sylvan Crescent, Sales Rep
Cochrane, David J, 57 Sylvan Crescent, Clerk

Second given name, preferred name of “Jack”, date of death, place of death in Auckland [Green Bay, Titirangi], estimated year of birth of "1925", estimated year of marriage of "1951", from Obituary of John Cochrane found online in July 2025:
John COCHRANE Obituary
https://notices.nzherald.co.nz/nz/obituaries/nzher...obituary?id=45024048
COCHRANE, John Frost (Jack). RNZN 9308. Passed away suddenly at his home in Pinesong Retirement Village. Saturday 20 December 2014 Devoted husband to Colleen Josephine for 63 years. Loved and respected father and father-in-law of David and Janene, Stephen and Robert, Peter and Raewyn. A proud and loving grandfather to Aaron, Hannah and Matt, Lisa and Kane, and Bradley. In his 89th year. A life well lived. A service for Jack will be held in the Chapel of Tilton Opie and Pattinson, 3232 Great North Road, New Lynn on Tuesday 23rd December 2014 at 1pm followed by private cremation. In lieu of flowers donations can be made to the RSA Welfare Section New Lynn, 2 Veronica Street, New Lynn. All communications to Tilton Opie and Pattinson, PO Box 151126