The book was written in the fifties. If I remember my childhood etiquette right, "Mrs. William Hastings" was the correct name of the wife of William Hastings in those days. She would certainly introduce herself that way. She'd take grave offense if she were introduced as "Mrs. Ruth Hastings" (assuming her given name was Ruth); that would mean she was divorced, which was shameful. I thought there was yet another form of address for widows, but if there was, I can't remember it.

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