Thank you, Newburychap! It clears something. While living in Tangier, Morocco, my greatgrandfather was Jew and naturalised British by Parliament Act. He certainly wanted his son to study in a British and Jewish college and naturally chose Craufurd college. Quite emotioning to see a photo of the college in the link to Maidenhead Civic Society News, though it is a shame it no longer exists.
Thanks also to Stanmapstone for his historical newspaper extract about the creation of the college!