Thomas McMahon's photographs and reports from the southwest Pacific appeared in capital city and provincial newspapers in Australia and New Zealand, and globally in pictorial encyclopedia, books, magazines and postcards and in his own lantern slide lectures. He visited Papua and German New Guinea, the Solomons, Vanuatu, Fiji, Nauru, Banaba, Norfolk, Lord Howe Island, Kiribati, and the Marshall Islands but the thousand photographs of the Islands that he published between 1915 and 1925, after self-funded expeditions across the region, failed to attract the coveted Fellowship of the Royal Geographical Society that he wanted. In 1922, he turned to another career, this time as a paid journalist with a Brisbane newspaper, as their travelling back-country reporter and photographer.
He was probably the most recognized photographer of his day for both his Pacific and Queensland, Torres Strait and Northern Territory photography and certainly one of the best-informed journalists of the day who could say "I was there" when boosting Australia's trade and commercial potential in the Islands, and in his later career, in Northern Australia.
After his death in Brisbane in 1934 he was forgotten and was rarely cited in studies of photography, journalism or Australia's Imperial posturing after WWI. His published photographs can now be found in the bound periodicals section of libraries, and digitally through Trove, and in the works of colleagues who borrowed his images for their own books and articles. Thanks Tom, as he was known, for a wonderful archive of Australia and the Pacific in the early twentieth century.