The life and times of Rev John and Mrs Heinrich are in the National Archive for all to see.
It seems that the many events of the church and district were reported and are available online at the National Archive.
For example from The Brisbane Courier (Qld. : 1864-1933) Saturday 14 February 1931, here is the story of the presentation of what is now Ellice’s watch:
And from The Brisbane Courier (Qld. : 1864-1933), Saturday 3 November 1928, page 7
The story of the car.
Click on the articles to see them full size. There are plenty more press clippings available.