Colonel Archibald Christie CMG DSO (30 September 1889 – 20 December 1962) was a British businessman and military officer.

[2] Her brother was in the Indian Medical Service, and she was staying with him when she met Archibald Christie (senior),[3] who was thirteen years older than she was.

He wanted to be a pilot so he paid for private lessons in the Bristol Flying School at Brooklands and gained his aviators' certificate on 12 July 1912.

[8] He met Agatha Miller when he was invited to a ball on 12 October 1912 by Lady Clifford at her grand home Ugbrooke House in Chudleigh.

He was a tall, fair young man, with crisp curly hair, a rather interesting nose, turned up not down, and a great air of careless confidence about him.

[10] On Christmas Eve 1914, shortly after the outbreak of World War I, Christie and Agatha were married at Emmanuel Church, Clifton, Bristol, close to the home of his parents.

Their only child, Rosalind Margaret Clarissa, was born in Agatha's childhood home Ashfield in Torquay in 1919.

[13] He remained there until 1922 when he was offered a position by his father's former colleague Major Ernest Belcher as financial adviser in the British Empire Exhibition Tour.

During this time, Christie and Agatha visited many places around the world and came to know Major Ernest Belcher, who led the tour and organised many parts of the Wembley Exhibition.

[14] After they returned from the tour, Christie found a job in the city and later moved to Austral Development, which established him in the world of finance.

[16] At the beginning of 1925, Agatha was invited to participate in a committee to design and organise a children's section of the 1925 British Empire Exhibition in Wembley.

The committee on which both Agatha and Nancy sat designed and organised the Children's Paradise section of the Wembley Exhibition which contained Treasure Island as its centrepiece.

[18] At the beginning of 1926, Christie and Agatha jointly bought a large house in Sunningdale they called "Styles".

Christie issued a statement to the press that his wife was suffering from a nervous disorder and that she had complete loss of memory.

In 1928, Christie married Nancy Neele at St George's, Hanover Square, with just a few close friends present at the ceremony.

After she left school, Nancy completed a course at the Triangle Secretarial College in London and obtained a position as a clerk in the Imperial Continental Gas Association.

[27] The couple lived in their London flat until about 1939 when they moved to a large country house near Godalming called Juniper Hill on Hydon Heath.