I have also not been able to find any information about James Reginald. In his mothers obituary it remarks that he was living in Melbourne and refers to him as Reginald not James. Would love any help.
Kate
In case there are others who wish to help

I note the indexes have Mary
Jane McDONALDThe Examiner Launceston 9 Nov 1940
OBITUARY MRS. M. J. McDONALD The death occurred after a short illness at the Currie Cottage Hospital on Tuesday night of Mrs. Mary Josephine McDonald. She was aged 75. Mrs. McDonald was born at Westbury, Tasmania, her former name being Mary Josephine O'Beirn.
She married James Francis McDonald, of Westbury, in 1893. After her husband's death in 1902 Mrs. McDonald returned to Tasmania with her youngest son Austin and took charge of the St. Leonards Hotel. In 1905 she went to King Island and accepted the position of postmistress at Currie - an office which she filled for nine years. After her retirement Mrs. McDonald lived in Currie. She was a foundation member of the C.W.A. on King Island, and worked untiringly in the interests of the Roman Catholic Church. Mrs. McDonald leaves three sons Mervyn (Puckapunyal, Victoria), Reginald (Melbourne), and Austin (King Island).
On Wednesday afternoon Rev. T. Murphy, of Wynyard, conducted a short memorial service at the Roman Catholic Church, Currie. After the service the cortege proceeded from the church to the Currie cemetery.
Cheers

Cando