Lynton Diggle is a retired documentary filmmaker and winner of 23 international awards, including two gold medals at the New York Film Festival. He started his career as a programmer and scriptwriter for the NZ Broadcasting Service, and joined the National Film Unit in Wellington as a cameraman in 1957. He formed his own documentary company, Film New Zealand, in 1979. He produced five TV documentaries on major ship salvages around the Pacific. With a lifelong interest in diving, he built camera equipment for underwater filming, including underwater material recovering Cook's anchor in Tahiti. He was President of the Oceans Society for several years. Lynton retired from filmmaking in 1986 and joined Edith in researching shipwrecks. Lynton and Edith are members of the Underwater Heritage Group. Edith Diggle's interest in things marine and nautical began when she married Lynton in 1959. She was on the committee organising Oceans Conferences in Auckland from 1975 to 1986, organising speakers to lecture on different aspects of the oceans. In 1986 Edith began researching shipwrecks. Her work on the wreck of the Tasmania is very extensive (Lynton and Edith were with Kelly Tarlton on his early endeavours to find the Rothschild's jewels). Edith also assisted Lynton in his filmmaking career and was sound recordist for the documentary on oil recovery from the sunken troopship, President Coolidge in New Hebrides. In the late 1980s she was the 'Shipwreck Lady' in DIVE magazine producing information on wrecks not listed in the 7th edition of NZ Shipwrecks. Keith Gordon started sport diving in the early 1950s. He has been involved with shipwreck research and exploration projects around New Zealand, the South Pacific and Southeast Asia. A career in aviation was expanded to include the use of new technology including remote operated vehicles and submersibles to explore deeper shipwrecks. Keith is author of Deep Water Gold, the story of RMS Niagara and has been involved with numerous documentary films on shipwreck exploration. He is a Director of SeaROV Technologies Ltd., a company specializing in underwater exploration. Keith is also a member of maritime archaeological institutions, historical diving societies and a Fellow of the Explorers Club.