Hi Alana, I too needed something extra to chase Robert. I can add to what you already have done.
James Colquhoun Simpson married Emma Dobbrick in 1915 in Queensland Source: Queensland, Birth, Death Marriages Year 1915, Reg C3618
James Collquhoun Simpson died, aged 70 years on 9 May 1961 at Base Hospital , Maryborough, late of Margate. Source: Ryerson Index for James Colquhoun. Death Source; Queensland Birth, Death and Marriages Year 1961 Reg; C 2340
James married Emma Dobbrick 1915 Source:Marriage; Source; Queensland Birth, Death and Marriages Year 1915 Reg C3618
There was a Margaret died 9 Aug 1970.
Cheers