Hi faith
The photo for K.V Breach was taken in 1914 and it's from the photos collection at the Library.
I have taken a photo of Moses's Headstone/Plaque for you. The inscription says:
In memory of Rev M.S. Breach. Died 31st October 1913, aged 89. At Rest.
Next time I'm at the library I'll have another look for his funeral notice, as I was searching around the 13th Oct , not the 31st

There is no mention of Elizabeth at the City Council in their notes on Moses.
http://www.pukeariki.com/en/resources/passengerlists.htm you maybe able to open the lists from here, I can't though for some reason it says web page cannot be displayed. The passenger listing is extracted from Papers Past. From the library I have the following for Rev Breach and I'm sure there is a connection here with Mrs breach traveling to the Southern Ports as well. This may give us a clue where to start looking for her.
Newspaper Date:14 April 1875
Departing New Plymouth and arriving 13 Apr 1875, Southern Ports on the Wellington, Mrs Breach.
Newspaper Date: 1 Sep 1875
Departing New Plymouth and arriving 31 Aug 1875, Southern Ports on the Hawea, Mrs Breach.
Newspaper Date: 16 Oct 1875
Departing Southern Ports and arriving 13 Oct 1875 in New Plymouth on the Taupo, Mrs Breach
Newspaper Date: 21 Feb 1879
Departing New Plymouth and arriving 20 Feb 1879, Southern Ports/Lyttelton on the Wellington, Rev Mr Breach.
Newspaper Date: 5 Apr 1879
Departing Wellington and arriving 5 April 1879 in New Plymouth on the Taiaroa, Rev Mr Breach.
Newspaper Date: 11 Dec 1879
Departing New Plymouth and arriving 11 Dec 1879, Southern Ports on the Taiaroa, Rev Mr Breach.
The are 16 entries altogether for Breach on the passenger lists the other entries are for
( separartely ) Mr and Mrs Breach and/or family either traveling between New Plymouth and Manukau or Waitara and Kaipara. If anyone needs me to put this information up, I can do so.

If you would to PM your email address I can send through these photos of Moses Headstone.

Regards
lil