Geoffrey Spurrell Mileham was born in Sutton, Surrey, England on 9 May 1884 and was articled to Charles Henry Money Mileham (1837-1917). He also attended the Archirectural Association Schools in London. He commenced practice as an architect in Westminster, London in 1907 and was in partnership with Wilfred Irwin Travers (1883-1954) as Travers & Mileham.
During the winters 1907-8, 1908-9, Mileham travelled as architect and surveyor as part of the Eckeley J. Coxe Expeditions of the University of Pennsylvania to Lower Nubia. 1908. He also visited Athens, Epidauros, Mycenae, Tlryns, Argos, Sparta, Kalamata, Corinth, Euboea, Volo, Larlssa, Janina (Albania), &c, to study Byzantine and Mediaeval architecture in particular.
His publications included "Churches In Lower Nubia"; editing, with Mr. Somers Clarke, F.S.A., a series entitled " Les Temples Immergés de la Nubie"; " Documents" for the Service des Antlquités, Cairo.
Mileham's address was given as 31, Budge Row, London 4, The Broadway, Hammersmith, London and Coper's Cope, Beckenham, Kent in 1914; and Felcote, Felden Lane, Boxmoor, Hertfordshire in 1960. He died in Hemel Hempstead, Hertfordshire on 18 October 1960
In conjunction with Wilfrid Travers, A.R.I.B.A. (Travors & Mileham): houses at Wimbledon Park, Northwood, Aylsham; designed separately, permanent Camp and Rest House, near Wady Haifa, Sudan. [Source: Who's Who in Architecture 1914]
Directory of British Architects 1834-1914. Compiled by Antonia Brodie, et al. Volume 2: L-Z. London; New York: British Architectural Library, Royal Institute of British Architects/Continuum, 2001