An air traffic controller was blamed by a later enquiry for misdirecting traffic when he ordered a United Airlines Boeing 777 into a level of the Bovingdon Hold (or stack) already occupied by a similar British Airways plane.
After release from hospital in 1971, he began work as a quartermaster at John Hadland Laboratories in Bovingdon, Hertfordshire, near his sister's home in Hemel Hempstead.
John Bovingdon (1890–1973) was a modern dancer-turned-economic analyst who performed regularly at the Kings Road House of architect R.M. Schindler in Los Angeles in the 1920s.
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Bovingdon founded a dance school with his wife, Jeanya Marling, later she married Soviet playwright Alexander Afinogenov.