Margaret E. Leshikar-Denton serves with the Cayman Islands National Museum. Initiatives include research exhibitions, a shipwreck register, a maritime heritage trail, shipwreck preserves, and advocating legislation. She has worked in the Caribbean, Mexico, United States, Spain and Turkey. Chair of the SHA UNESCO Committee, and a research associate with Institute of Nautical Archaeology, she also serves on the ICOMOS-ICUCH and ACUA.Pilar Luna Erreguerena is head of the underwater archaeology area of the National Institute of Anthropology and History and is the pioneer of Mexican underwater archaeology. She has directed several projects in marine and continental waters. She is a member of the SHA UNESCO Committee, ICOMOS-ICUCH, ICOMOS México and ACUA.