Welcome back EB
Hope the exams went well 
I will order a check and verify on the other Catherine McDonald who died on 17 Nov 1868 (reg 464/1868). Adding : ordered 
Just re-reading the thread to refresh my memory. There were a few probates which I haven't photographed yet (limit of 16 per visit) so I will fit in a few more on next visit.
Ros
Good to know your exams are behind you.
http://www.austcemindex.com/inscription?id=2994945#imageshttp://www.austcemindex.com/cemetery?cemid=225 17 Nov 1868
From the New England Highway at East Maitland, turn north-west onto the Morpeth Road. Follow this for approximately 1.3km to Hiland Crescent. The cemetery is 400m from that intersection at its junction with Maize Street.
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Re NSW BDM REF 464/1868 Deaths (the online search option for date of event gives all of 1868 for that event, ie not just 17 November 1868, but any date in that year– there are known flaws in the index, and other RChatters have previously mentioned these ‘date’ issues).
464/1868 – TWICE indexed :
Catherine MACDONALD/MCDONALD parents given names displayed as James and Bedelia, registered Sydney BDM district.
I expect that 464/1868 registration may be for the following Catherine McDonald.
http://trove.nla.gov.au/newspaper/article/13164538 SMH 13 April 1868
On Sunday, the 12th instant, at her residence, the Colonial Architect’s Department, Hyde Park, Catherine, relict of the late Mr Patrick McDonald, in the fifty first year of her age
http://trove.nla.gov.au/newspaper/article/13164600 SMH 14 April 1868
Funeral
The friends of the late Mrs Catherine McDonald are invited to attend her funeral; the procession to move from St Marys temporary Cathedral this (Tuesday) afternoon at 3 o’clock
JM