Month and year of death from Thank you sympathy card held by Rachel Oliver b. 1940.

Year and country of birth, from Birth search on New Zealand BDM website in June 2018:
1910/26451. Leo, Thomas William. Mother: Catherine. Father: Michael John

Full date of birth of 4 January 1910 from further searching in June 2020 on BDM Search by incrementally changing the date range for the birth.

New Zealand Electoral Roll - Wellington West Supplementary Roll No. 1 for 1938, found in June 2018:
Leo, Thomas William, 145a Aro Street, clerk

New Zealand Electoral Roll - Wellington North Supplementary Roll No. 1 for 1938, found in June 2018:
Oliver, Muriel Thelma, 8[?] Church Street, spinster

Brian of nzolivers.com finds it interesting that in 1938 both Muriel Oliver and Thomas Leo were living in Wellington at the same time they were single and wonders is this where they met? The next record of NZ Electoral Roll has them as married by 1946 and still living in Wellington.

New Zealand Electoral Roll - Mount Victoria [Wellington] General Roll for 1946, found in June 2018:
Leo, Thomas William, 7A Elizabeth Street, clerk
Leo, Muriel Thelma, 7A Elizabeth Street, married

New Zealand Electoral Roll - Tamaki General Roll for 1949, found in June 2018:
Leo, Thomas William, 8 Te Arawa St., SE2. civil servant
Leo, Muriel Thelma, 8 Te Arawa St., SE2. married

New Zealand Electoral Roll - Tamaki General Roll for 1954, found in June 2018:
Leo, Thomas William, 8 Te Arawa St., SE2. civil servant
Leo, Muriel Thelma, 8 Te Arawa St., SE2. married

New Zealand Electoral Roll - Onslow Main Roll for 1957, found in June 2018:
Leo, Thomas William, 19 Stephen Street, civil servant
Leo, Muriel Thelma, 19 Stephen Street, married

New Zealand Electoral Roll - Tamaki Composite Roll for 1963, found in June 2018:
Leo, Thomas William, 53 Reihana St., E1., Civil Servant
Leo, Muriel Thelma, 53 Reihana St., E1., Married

Year and country of death, from death search on New Zealand BDM website in June 2020:
1964/27828. Leo, Thomas William, died age 54Y

Full date of death of 14 June 1964 from further searching in June 2020 on BDM Search by incrementally changing the date range for the death.

Year and country of marriage from search on New Zealand BDM website in June 2023:
1946/1896. Bride: Muriel Thelma Oliver. Groom: Thomas William Leo

Full date of marriage of 21 January 1946 from further searching in June 2023 on BDM Search by incrementally changing the date range for the marriage.