VC-137C SAM 26000 VC-137C SAM 26000 SAM 26000 was the first of two Boeing VC-137C United States Air Force aircraft specifically configured and maintained for use by the President of the United States. It used the callsign Air Force One when the President was on board, "SAM 26000" otherwise. A VC-137C with Air Force serial number "62-6000", "SAM 26000" was a customized Boeing 707. It entered service in 1962 during the administration of John F. Kennedy and was replaced in Presidential service in 1972 but kept as a backup. The aircraft was finally retired in 1998 and is now on display at the
Family of Barack Obama and began dating Barack Sr. in Cambridge in June 1964, a month before his return to Kenya in August 1964. She followed Obama Sr. back to Kenya five weeks later, and married him in Kenya in a civil ceremony on December 24, 1964. She later became a private kindergarten director in Kenya. She had two sons with Barack Obama Sr.: Mark and David. She and Barack Sr. separated in 1971 and divorced about 1973. Since she remarried when her sons were young, they took their stepfather's surname, Ndesandjo, as their own. Her third son, Joseph Ndesandjo, was born c. 1980