Name from the Will of David’s grandmother’s (Josephine Margaret) new husband, Victor Trevor Fraser, dated 4 May 1980, found on Archives New Zealand Collections found online in July 2025:
"...for such of my wifes grandchildren DAVID COCHRANE, PETER COCHRANE and STEVEN COCHRANE as shall be living…”.

Second given name and occupation from the affidavit to lead grant of probate by Lyle Housten Fraser and David John Cochrane from the Will of husband, Victor Trevor Fraser, dated 4 May 1980, found on Archives New Zealand Collections found online in July 2025:
"WE, LYLE HOUSTEN FRASER of Auckland, Customs Officer and DAVID JOHN COCHRANE of Auckland, Carpenter severally swear :- ...".

New Zealand Electoral Roll - Waitakere Supplementary Roll 1978, found in July 2025:
Cochrane, David John, 14 Dallow Place, Glendene, Carpenter
Cochrane, Janene Barbara, 14 Dallow Place, Glendene, Bnk Ftor

New Zealand Electoral Roll - Waitakere Composite Roll 1981, found in July 2025:
Cochrane, David John, 73 Lagoon Way, West Harbour, Carpenter
Cochrane, Janene Barbara, 73 Lagoon Way, West Harbour, Home Exctve

New Zealand Electoral Roll - Waitakere Main Roll 1998, found in July 2025:
Cochrane, David John, 14 Dallow Place, Henderson Ak 8, Carpenter
Cochrane, Janene Barbara, 14 Dallow Place, Henderson Ak 8, Bnk Offcr

It is UNCERTAIN whether this New Zealand Electoral Roll found in July 2025 is our David John Cochrane?
Te Atatu Main Roll 1978:
Cochrane, John F, 57 Sylvan Crescent, Sales Exec [Possible father]?
Cochrane, Colleen J, 57 Sylvan Crescent, Married [Possible mother]?
Cochrane, Stephen George, 57 Sylvan Crescent, Sales Rep [Possible brother]?
Cochrane, David J, 57 Sylvan Crescent, Clerk