Hi Minniehaha,
The Hillsborough Cemetery Record Books are held at the Auckland City Archives which are in the basement of the Auckland City Library the books are a wealth of information
"Series contains registers of information about people buried in Hillsborough cemetery, which show date of warrant, number, name of deceased, occupation, residence, date of death, cause of death, where deceased last came from, denomination, age in years, native place, years in province, date of burial, where buried (area, block, lot), name of officiating clergyman, name of informant, and remarks."
A search of the 1931 book may yield more information
Cheers Janette