List of People Who Disappeared Mysteriously - 1920s

1920s

• 1920 – Victor Grayson (39), British socialist politician, received a phone call and told his friends that he had to go to the Queen's Hotel in Leicester Square and would be back shortly. He was last seen entering a house owned by Maundy Gregory.
• 1921 – The captain and crew of the Carroll A. Deering, which was found beached near Cape Hatteras, North Carolina.
• 1921 – Charles Whittlesey (37), American soldier and Medal of Honor recipient who led the "Lost Battalion" in World War I. He was last seen on the evening of November 26, 1921, on a passenger ship bound from New York City to Havana, and presumed to have committed suicide by jumping overboard.
• 1924 - Andrew Irvine (22) English mountaineer who took part in British Mount Everest Expedition 1924. He and his climbing partner George Mallory disappeared somewhere high on the mountain's northeast ridge. Though Mallory's body was found in 1999, the search for Irvine's continues to this day.
• 1925 – Percy Fawcett (58), British archaeologist and explorer, together with his eldest son, Jack, and friend Raleigh Rimmell, was last seen travelling into the jungle of Mato Grosso in Brazil to search for a hidden city called the Lost City of Z. Several unconfirmed sightings and many conflicting reports and theories explaining their disappearance followed, but despite the loss of over 100 lives in more than a dozen follow-up expeditions, and the recovery of some of Fawcett's belongings, their fate remains a mystery.
• 1925 – Frederick McDonald, Australian politician, set off from Martin Place, Sydney, for a meeting with Jack Lang two blocks away but failed to arrive. He was possibly murdered by his political rival Thomas John Ley. In 1947, Ley was convicted at the Old Bailey of "the chalkpit murder" of a barman in England and sentenced to hang but was then declared insane and sent to Broadmoor high-security psychiatric hospital, where he died of a cerebral hemorrhage two months later.
• 1926 – Agatha Christie, the British crime writer famously disappeared and, although she reappeared sometime later, the actual reason for her disappearance remains a mystery.
• 1927 – Charles Nungesser (45), French aviator, and his navigator, François Coli (45), disappeared while attempting a flight from Paris to New York. They are presumed to have crashed into the Atlantic, or possibly in Newfoundland or Maine, but no wreckage that could be confirmed to be from their biplane, The White Bird, was ever found.
• 1928 – Walter Collins (9) disappeared from his Los Angeles home. His disappearance and the attempt by the Los Angeles police department to convince his mother that a different boy was her son formed the basis of the 2008 film Changeling.
• 1928 – Glen and Bessie Hyde (29 & 22), American newlyweds, disappeared while attempting to raft the Colorado River rapids of the Grand Canyon.
• 1928 – Roald Amundsen, Norwegian Arctic explorer, disappeared on a search and rescue mission in the Arctic.
• 1928 - The Danish sailtraining vessel "København" ("Copenhagen") vanished en route from Buenos Aires to Australia sometime between December 1928 and January 1929, with the loss of 14 crew and 45 cadets, some of whom were as young as 16 years old.