Ooh, here's something which says that Marianne's daughter was called Miss Essex!
https://sites.google.com/site/marapito/jollie_03
Also that in 1846 or 1847, Miss Essex married "Doctor Pollen of Auckland, who afterwards became and Member of the Legislative Council and was a member of several New Zealand Governments".

Ah, the New Zealand Encyclopaedia says that Dr Daniel Pollen married, on 18 May 1846, Jane Henderson, daughter of Lieut Essex, RN, of Demerara.
http://www.teara.govt.nz/en/1966/pollen-daniel

Jane Henderson Essex was baptised 7 Nov 1827 at St Clement Danes, Westminster, parents James Henderson Essex and Marianne. (from FamilySearch.)

Here is Charles in 1839, solemnising the marriage of his cousin Lucinda: http://interactive.ancestry.co.uk/21...nSearchResults

When his sister Maria made her will, she named Nicholas Duckworth her executor. In 1851, his eldest daughter was a pupil of hers.

Looking on Papers Past, the Nelson Examiner and New Zealand Chronicle 23 May 1846 says "MARRIED. On the 18th instant, by the Rev C L Reay, D Pollen, Esq, MD, to Jane Henderson Essex, daughter of the late Lieutenant Essex, RN."

(by the way, there are lots of long-winded letters that Charles wrote to the papers on there.)

And this also from Papers Past:
New Zealand Herald 30 Nov 1903
DEATHS. On November 28, at Grange Road, Mount Roskill, Jane Henderson, relict of the late Hon. Dr. Pollen, aged 75 years. Private interment.

This is a seriously wealthy family.

Charles's sister Julia married Thomas Ripley and after he died, built Ripley's Hospital, which apparently cost over £100k.

The Ripleys were in Bangor in 1841 - no Reays with them.

This is where you can find details of the marriage licence:



License date:22 Dec 1824

License date year:1824

Bride's last name:COOK

Bride's first name:Mary A

Dual date:22 Dec 1824

Groom's last name:ESSEX

Groom's first name:James H

Record source:Faculty Office Marriage Licence Allegations 1701-1850

Data provider:Society of Genealogists

I note in one of the items Kate found that Charles Lucas Reay's dates were 1780 - 1848. Was that a misreading of his gravestone?