I have looked for the above entry on FindMyPast "NSW Will Books 1800-1952" without success, however there are several references to her will at State Records online -
Deceased Estates
records.nsw.gov.au Archive Investigator
Series 4-199188 Item Mary Jane McKune - Date of Death 03/05/1934, Granted on
09/10/1934
Deceased Estates
MCKUNE Mary Jane Woolwich 03/05/1934 11/02/1935 Pre A 086459 [20/1912] - Occupation: widow
There is a notice in the SMH about Probate and I have her Death Certificate. I have downloaded the will of her husband William McKune
If someone has the time when at State Records I would love a copy of her will - from the Will Book would be fine - I think there may be a glitch with FindMyPast as another probate granted about the same time is indexed twice.
I hope I am not infringing any copyright with this request. With thanks from Beth