David W. Gaukrodger (c. 1865-1933) was born in New Zealand, and came to Australia as a young man where he worked on various cattle stations. He moved to Brisbane in 1926, where he lived for the remainder of his life, and was a director of the Union Trustee Co. of Australia. He was a recognised authority in birds and wrote many articles on the subject, and his photographs of birds were used in a number of journals.

Charles Leslie Barrett (1879-1959) was a naturalist and journalist. He was born in Hawthorn, Victoria. He wrote on natural history for the Melbourne newspaper The Herald, was associated with the Field Naturalists' Club of Victoria and the Entomological Society of Victoria, a founder member of the Royal Australasian Ornithologists' Union, assistant editor of Emu (1910-1916) and was a fellow of the Royal Zoological Society of London. In the First World War he served in Egypt in the Australian Imperial Force's Camel Brigade Field Ambulance. After the war he travelled widely through Australia and published numerous books on natural history, and during the Second World War he visited troops in Northern Australia and New Guinea, giving lectures on practical bush lore. He died in Melbourne