In the authorised Miss Marple continuation short story The Murdering Sort, Edith Westover is the sister of the wealthy American tycoon Josiah Westover. Most of the plot of the story revolves around events which take place during a party to celebrate Edith's birthday at Josiah's mansion at Cape Cod. Edith is described as a "no nonsense" elderly woman "still in her gardening clothes" at her party.