A correspondent gently suggests that I may be seen to have made a faux pas with my previous post. Referencing the title, he asks: "How does one address a duke's eldest son's younger son?" The answer, as provided by Miss Wallace, is as follows:
DUKE'S ELDEST SON'S YOUNGER SONWriting to:Is, by courtesy, addressed as if the father were a peer; i.e. "Honourable (John) Doe"Personally addressed as: Mr. John DoeReferred to as: Mr. John Doe.
It should be noted that the rules here are quite different from those concerning a duke's eldest son's younger son's eldest brother:
DUKE'S ELDEST SON'S ELDEST SONWriting to:Assumes, by courtesy, the third title of his grandfather, and is addressed as a peer.Personally addressed as: Lord Doe.Referred to as: Lord Doe.
I offer sincere apologies for not having addressed this matter in Monday's post, and add this invaluable bit of information.