Hi Bramcor,
I wonder if your local family history writer is connected with my Drummonds? Kate Drummond married Robert Henry Wallace in 1892, in the Mackay area.
They had five children: Lilian Esther (born 1893), George William (born 1894, married Florence known as Queenie), Ada Elizabeth (born 1896 married Victor Johnson), Richard Henry (born 1898) and Katie Mary (born 1900, married Edward Greenaway).
The information I have on them is from a 'family history' written I think by Emily Drummond's descendents, but I also have a couple of letters and photographs that Katie Mary sent to her cousin Margaret Telford in Gateshead.
Would be interested to hear if your Wallace was related!
Best wishes,
Lesley