Some history of Prince William of Gloucester from the book
William of Gloucester: Pioneer Prince, Giles St Aubyn, 1977
1944: in December the Gloucesters, with young William and Richard (the current Duke) went to Australia where the Duke became Governor General.
1944: returned to their UK home at Barnwell.
1954: Eton College.
1960: William went to Cambridge University, with rooms in Magdalene College.
1963: three-month African safari with seven friends, and they sold a film of it to the BBC: September - Stanford University, course in Economics, Business and Political Science.
1964: extensive tour of Mexico, US and Canada, then returning to England via Japan, Thailand and Australia.
1965; first employed at Lazards in the City of London to obtain some knowledge of finance; posted as Third Secretary on the staff of the British High Commission in Lagos.
1966: a brief holiday in Ethiopia; travelled much in West Africa; had flying licence by now;
1967: bought a Piper Twin Comanche plane; wriing to a friend the Prince said about the shortage of girls "though it is probably just as well, because I can already feel the urge to get engaged slowly creeping up on me. Living a solo diplomatic life, one begins to appreciate the advantages of marriage, without worrying too much about the snags. But meanwhile I struggle on with Tarqua (his dog), George my parrot, and Daphne, my python, for companions."
1968: posted to Tokyo as Commercial Attaché, and he flew there in his plane in sixteen days.
The Prince was seen often with a Hungarian girl, Zsuzui Starkloff, who became his regular companion at various functions. "The rumours started to fly."
1969 (I think): appointed to the Embassy in Tokyo as Second Secretary (Commercial); Princess Margaret opened British Week in Tokyo.
William returned to England and Zsuzui later joined him to meet his parents, but it was clear that they were against a marriage.
[She has written - I was older than William for a start, twice divorced and had a different religion.]
The Duke was not well and William devoted himself to reorganising Barnwell, and he became involved in light aricraft racing.
William's love of travel and adventure continued in Africa.
1970: the Prince took a competition licence and entered rallies, and entered the King's Cup Air Race in the UK.
1972: Prince Richard's wedding was in July; in August Prince William entered the Goodyear International Trophy to be flown from Halfpenny Green Airfield in Staffordshire, where the accident occurred.