Harriet Mankelow - Who was the other Harriet Mankelow who died in New Zealand

https://www.bdmhistoricalrecords.dia.govt.nz/Search/Search?Path=que...
Registration Number, Family Name, Given Name(s), Date of Birth / Age at Death
1887/785 Mankelow Harriett 18D
and
https://www.bdmhistoricalrecords.dia.govt.nz/Search/Search?Path=que...
Registration Number, Family Name, Given Name(s), Date of Birth / Age at Death
1930/6381 Mankelow, Harriet 75Y
and
https://www.myheritage.com/research/record-10866-1774936-/harriett-...

In New Zealand, Index of Burials, 1840-2008
Name; Harriett Mankellow, Birth; Circa 1855, Burial; 1930, Karori, Wellington, New Zealand, Age 75
Category Interment, Source Karori Cemetery Office, Reference M524
Note Ref M524 doesn't work for NZ BDM