Letter from Winston Churchill to American author Winston Churchill, June 1899:

Mr. Winston Churchill presents his compliments to Mr. Winston Churchill, and begs to draw his attention to a matter which concerns them both. He has learnt from the Press notices that Mr. Winston Churchill proposes to bring out another novel, entitled Richard Carvel, which is certain to have a considerable sale both in England and America. Mr. Winston Churchill is also the author of a novel now being published in serial form in Macmillan’s Magazine, and for which he anticipates some sale both in England and America. He also proposes to publish on the 1st of October another military chronicle on the Soudan War. He has no doubt that Mr. Winston Churchill will recognise from this letter — if indeed by no other means — that there is grave danger of his works being mistaken for those of Mr. Winston Churchill. He feels sure that Mr. Winston Churchill desires this as little as he does himself. In future to avoid mistakes as far as possible, Mr. Winston Churchill has decided to sign all published articles, stories, or other works, ‘Winston Spencer Churchill,’ and not ‘Winston Churchill’ as formerly. He trusts that this arrangement will commend itself to Mr. Winston Churchill, and he ventures to suggest, with a view to preventing further confusion which may arise out of this extraordinary coincidence, that both Mr. Winston Churchill and Mr. Winston Churchill should insert a short note in their respective publications explaining to the public which are the works of Mr. Winston Churchill and which those of Mr. Winston Churchill. The text of this note might form a subject for future discussion if Mr. Winston Churchill agrees with Mr. Winston Churchill’s proposition. He takes this occasion of complimenting Mr. Winston Churchill upon the style and success of his works, which are always brought to his notice whether in magazine or book form, and he trusts that Mr. Winston Churchill has derived equal pleasure from any work of his that may have attracted his attention.

In 1959 Bertrand Russell and Lord Russell of Liverpool wrote a joint letter to the Times:

“Sir: In order to discourage confusions which have been constantly occurring, we beg herewith to state that neither of us is the other.”