of his NASA career developing underwater training to help astronauts with future spacewalks. He resigned from NASA in August 1967, and retired from the Navy with the rank of commander in 1969, after which he founded Sea Sciences, Inc., a corporation for developing programs for utilizing ocean resources and improving environmental health. Carpenter became a consultant to sport and diving manufacturers, and to the film industry on space flight and oceanography. He gave talks, and appeared in television documentaries on these subjects. He was involved in projects related to biological pest control and waste disposal, and for the production of energy from industrial and agricultural wastes. He also appeared in television commercials for brands such as Oldsmobile, Standard Oil of California, Nintendo, and Atari. He wrote a pair of technothrillers, The Steel Albatross (1991) and Deep Flight (1994), and in 2003 he published his autobiography, For Spacious Skies: The Uncommon Journey of a Mercury Astronaut, which was co-written with his daughter, Kristen Stoever. Personal life Carpenter was married four times, divorced three times, and had a total of eight children by three wives, seven of whom survived to adulthood. He married his first wife, Rene, in September 1948. They had five children: Marc Scott, Kristen Elaine, Candace Noxon, Robyn Jay, and Timothy Kit, who died in infancy. By 1968, Carpenter and his wife had separated, with him living in California and Rene with their children in Washington, D.C. The Carpenters divorced in 1972. In 1972, Carpenter married his second wife, Maria Roach, the daughter of film producer Hal Roach. Together, they had two children: Matthew Scott, and Nicholas Andre, who would later become a filmmaker. He married his third wife, Barbara Curtin, in 1988. They had a son, Zachary Scott, when Carpenter was in his 60s. The marriage ended in divorce a few years later. In 1999, when he was 74, Carpenter married his fourth wife, Patricia Barrett. They resided in Vail, Colorado. In September 2013, Carpenter suffered a stroke and was hospitalized in the Swedish Medical Center in Denver. He was then admitted to the Denver Hospice Inpatient Care Center. He died on October 10, 2013, at the age of 88. He was survived by his wife, four sons and two daughters, a granddaughter, and five step-grandchildren. The Governor of Colorado, John Hickenlooper, ordered flags to be flown at half mast. A public memorial service was held at St.