The Tasmanian govt records give Georges date of birth. So he was really 95 when he died not 90 years.
Whoops .... missed that earlier.

The George FLEET at Ashburton Cemetery, died 1938 - supposedly aged 90 years - giving a birth year of
1848 (by my reckoning).
So if he was in fact born 1853, then at death (1938) his aged would have been
85 (rather than 95).
It seems very likely then that his death age on NZ records, is incorrect.
(I see the Tasmanian "Permission to Marry" record, shows William FLEET and Sibby COLLINS - 16 April 1850.)
Have checked the TAS (Archives) shipping lists - but there was nothing helpful (they are very, very, limited in detail).

~ Lu