Don't know if this relates to your David:
The Sydney Morning Herald - 1 July 1936
David Porter, a well-known resident of Puddledock, near Armidale, was found dead in a paddock on his property this morning with a rifle beside the body. Porter, who was a prominent church worker, left a note stating that he had battled for a long time with worry, and had decided to take his life. Two years ago he lost his wife and since then had insisted on living alone. An inquest will be held on Friday
