I'm curious to know what happened between the death of Polly's father in 1889 in Dunedin and Polly's final trip to London in 1900.
A lot of things could have happened in a decade, which could explain her sad demise. Maybe Arthur Grant was just the final chapter of a long story.
Her sister Kate married in Geraldton WA in 1895 and there's no mention of Polly (or anyone else for that matter).
A VERY pretty though quiet wedding was
celebrated at St. John's church on Sunday
afternoon by the Rev. A. H. Macdonald.
The contracting parties were Miss Kitty
Tyree, daughter of the late William Tyree,
of Dunedin, New Zealand, and niece of
Mrs. Browne, Of Hawthorne, Melbourne,
and Mr. William Cannon, assistant Regis-
trar at Cue. The church was prettily decorated
for the occasion, with evergreens and
white wild flowers. The bride wore a travelling
dress of gray tweed, with a French
toque trimmed with blue poppies. After
the ceremony the Sunday school children
lined the approach to the Church, and as
the bride walked down they showered her
with white daisies. The wedding march
played by Miss Sydney Gibbons completed
a very effective ceremony. Shortly afterwards
Mr. and Mrs. Cannon left the Manse,
where the bride has been staying since her
arrival in the colony, for a few days sojourn
at Greenough.
Geraldton Advertiser (WA : 1893 - 1905) Mon 9 Sept 1895 Page 2 LOCAL AND GENERAL.
https://trove.nla.gov.au/newspaper/article/252762007Polly embarked in Sydney in 1900. Where was she living? Was she travelling alone to Cape Town, South Africa? Why her final destination according to the ship's log was not London?