[3] Becoming an officer in the Royal Marines, in 1956 Hewitt married Shirley Stamp, daughter of a London dental surgeon living in Devon.
She operated the Exeter and District Riding School.
[4] Their son is James Hewitt, former Major in the Life Guards and media personality, known for his relationship with Diana, Princess of Wales.
[4][5][6] In 1974, Hewitt was organizing pony-trekking holidays in Devon.
[7] This biographical article related to modern pentathlon in the United Kingdom is a stub.