Archibald Montgomery Low developed the first powered drone aircraft. He was an English consulting engineer, research physicist and inventor, and author of more than 40 books.

Purley is an area of the London Borough of Croydon in London, England, 11.7 miles (18.8 km) south of Charing Cross, with a history going back at least 800 years. It was originally granted as an estate from holdings at Sanderstead and until as a district of Surrey and then, with neighbouring Coulsdon, as an urban district that became an electoral ward of the London Borough of Croydon, becoming part of the ceremonial county of London, in 1965. In 2018 the Purley ward was divided into two: Purley and Woodcote, and Purley Oaks and Riddlesdown.