Markham was born in the village of
Ashwell, in the county of
Rutland, England, the daughter of Charles Baldwin Clutterbuck, a horse trainer, and Clara Agnes (
née Alexander) (1878–1952). She had an older brother, Richard Alexander "Dickie" Clutterbuck (1900–1927). When she was four years old, she moved with her father to Kenya, which was then colonial
British East Africa. He built a horse racing farm in
Njoro, near the
Great Rift Valley between the
Mau Escarpment and the
Rongai Valley. Markham spent an adventurous childhood learning, playing, and hunting with the local children of all races. On her family's farm, she developed her knowledge of and love for horses, establishing herself as a trainer at the age of 17, after her father left for Peru. She befriended the Danish writer
Karen Blixen during the years that Blixen was managing her family's coffee farm in the
Ngong hills outside
Nairobi. When Blixen's romantic connection with the hunter and pilot
Denys Finch Hatton was winding down, Markham started her own affair with him. He invited her to tour game lands on what turned out to be his fatal flight, but Markham supposedly declined because of a premonition of her flight instructor, British pilot
Tom Campbell Black. Inspired and coached by
Tom Campbell Black, Markham learned to fly. She worked for some time as a
bush pilot, spotting game animals from the air and signalling their locations to
safaris on the ground. It is said that Beryl also simultaneously had an affair with Harry's older brother,
Edward, Prince of Wales (later Edward VIII) during this time. Returning to England, Harry installed Beryl as his mistress in the
Grosvenor House Hotel, a few minutes' walk from
Buckingham Palace. George V attempted to end the affair by sending Harry on a royal visit to Japan, but the affair resumed on his return to England. Historian Jane Ridley notes that Beryl "was spotted running barefoot along the corridors of Buckingham Palace". Mansfield later threatened to divorce Beryl and cite Harry as a
co-respondent. After her Atlantic crossing, she returned to be with Broad, who was also an influence in her flying career. == Record flight ==