Joseph Summers turboprop airliner (the Vickers Viscount) on 16 July 1948 and the initial flight of Britain's first four-jet bomber (Vickers Valiant) on 18 May 1951. By the time he retired, he had achieved 366 general types, second only to the Guinness world record holder Eric "Winkle" Brown who has 487. Summers still holds the world record of 54 "Prototype First Flights". On 15 December 2016, in a Boroondara Council meeting, Joseph Summers had the street formally known as Oliver Street renamed, to honour his work in the military. Summers married Dulcie Jeanette Belcher in 1922 in Sculcoates, Yorkshire. Summers died on
Joan Vickers, Baroness Vickers on 25 March 1904 and became one of their partners at their office at 4 Moorgate Street. At the end of the First World War, all the German stockbrokers were forced to resign. In 1917 he set up his own firm, Vickers, da Costa, which counted Sir Winston Churchill among their clients. Her brother, Ralph Vickers was later Senior Partner of the firm. Vickers was educated at St Monica's, Burgh Heath, Surrey, and in Paris. She was trained as a Norland Nurse, working in the Margaret Macdonald and Mary Middleton Hospital, Notting Hill and was active in politics in Battersea