- Not to be confused with the playwright Kenneth Horne.
- A memorial service was held for him at St. Martin-in-the-Fields, London on 19 March 1969.
- He collapsed and died of a heart attack while hosting the Guild of Television Producers' and Directors' Awards at the Dorchester Hotel in London. A recording of the programme up to the point of his collapse was shown later that evening as scheduled, with continuity announcer Michael Aspel announcing "Mr Horne was taken ill at this point and has since died".
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