He was born in Scarborough, North Yorkshire. He was a son of Colonel Charles William Harry Crichton, DSO (1872-1958), by his wife Dorothy Maud (who died in 1959), daughter of the Hon. Eustace Henry Dawnay, scion of the Viscounts Downe. Crichton shared the latter years of his life with Juan Soriano, in Eastbourne and later in Barcelona, where Soriano came from. He died unmarried in 2005 in Arenys de Mar, town some 25 miles North Barcelona City.