Walters produced a long series of science fiction novels. The first of them really did begin with an Englishman - or rather an English boy - becoming the first human in space:
Mysterious domes have been sighted in a crater on the Moon. Suspecting that they may be the work of Communists, the British Government must launch a man into space in order to photograph them from outside the atmosphere. Unfortunately their rocket was not designed to carry a man, and so someone unusually short is required. Enter Chris Godfrey, a four foot ten and a half sixth-former at Wolverton Grammar School. Will he survive the trip? The less than reliable rocket is to be launched from Australia - but there may be a Soviet traitor among the ground crew!They don't write stories like that any more. Particularly ones in which, as I recall, the hero visits Battersea Fun Fair and has a run in with some teddy boys, and the British space mission is led by a Wing Commander Greatorex.