Alexander Keiller (1 December 1889 – 29 October 1955) was a Scottish archaeologist, pioneering aerial photographer, businessman and philanthropist. He worked on an extensive prehistoric site at Avebury in Wiltshire, England, and helped ensure its preservation. Keiller was heir to the marmalade business of his family, James Keiller & Son that had been established in 1797 in Dundee, and exported marmalade and confectionery across the British Empire. He used his wealth to acquire a total of of land in Avebury for preservation, where he conducted excavations and re-erected some standing stones. He also pioneered aerial photography for archaeological interpretation. At Avebury, Keiller founded the Morven Institute of Archeological Research, now the Alexander Keiller Museum. In 1943 he sold the land at Avebury to the National Trust for its agricultural value only. His fourth wife, Gabrielle Keiller, was also an archaeological photographer, whom he met in connection with Avebury. Early life and education Alexander Keiller was born at Binrock House in Dundee on 1 December 1889, the only child of businessman John Mitchell Keiller (1851–1899) and Mary Sime Greig (1862–1907), of the Dundee medical family. When Keiller was nine, his father died, leaving him the sole heir to the wealth generated by the family's business. He was sent to Hazelwood School at Limpsfield in Surrey and from there went on to Eton College. When he was seventeen, his mother died, and he returned home to administer the family business. Family life and death On 2 June 1913, Keiller married Florence Marianne Phil-Morris (1883–1955), the daughter of artist Philip Richard Morris. They moved into Keiller's house in London. After the First World War, they were divorced. On 29 February 1924, Keiller married Veronica Mildred Liddell (1900–1964). Veronica shared his interest in archaeology and visited Avebury with him later that year. She was one of the supervisors for the 1925–1929 Windmill Hill excavations, near Avebury, alongside her sister Dorothy Liddell. Following a separation, Keiller divorced Veronica in 1934. On 16 November 1938, Keiller married for a third time; his new wife was Doris Emerson Chapman (b. 1901), an artist. She had joined the Morven Institute of Archaeological Research, founded by Keiller, in 1937. Her contributions in this field include detailed illustrations of the stones as part of the West Kennet Avenue excavations and the creation of visual reconstructions of faces from skulls, four of which were from a burial mound at Chippenham. He