Author of some 220 scientific papers and three books on butterflies, John Tennent served in the British Army between 1967 and 1991, mostly overseas. He was awarded the British Empire Medal in the New Years Honours List in 1981 for work in Belize, and made a Member of the Order of Logohu in the Papua New Guinea New Years Honours List in 2015, for research into Pacific butterfly taxonomy. Always interested in wildlife, and particularly butterflies, he resigned from the Army in 1991 to pursue research into Lepidoptera and the history of natural history in many parts of the world, usually on the path least travelled. Most recently he has carried out research into Pacific butterfly biogeography and systematics on some remote islands of the southwest Pacific. He has described more than 100 butterflies new to science - many discovered by himself. He was awarded the Linnean Society HH Bloomer Medal for contributions to science in 2007 and is currently a member of the Names Committee for the North American Butterfly Association. His most recent research interests have included fauna on outer islands of Milne Bay Province, Papua New Guinea, funded by several museums, learned societies, and National Geographic, Washington. With a wide variety of interests outside the service environment, poetry has been important to him since he was a small boy growing up in North Yorkshire.