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In page Peter Sallis:

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Peter John Sallis[1] was born on 1 February 1921 in Twickenham, Middlesex, the only child of bank manager Harry Sallis (1889–1964) and Dorothy Amea Frances (née Barnard; 1891–1975).[2][3] After attending Minchenden Grammar School in Southgate, North London, Sallis went to work in a bank, working on shipping transactions. After the outbreak of the Second World War he joined the RAF. He was unable to serve as aircrew because of a serum albumin disorder and was told he might black out at high altitudes. He became a wireless mechanic instead and went on to teach radio procedures at RAF Cranwell.[4]