Major Vaughan

In the novel A Murder is Announced, Major Vaughan was a Major in the Anglo-Indian army. He settled at The Larches in St. Mary Mead. Miss Marple mentioned him after Diana Harmon asked if there were any Anglo-Indian colonels in St Mary Mead. It is plausible that Major Vaughan is a parallel of Colonel Easterbrook, but Miss Marple does not explicitly say so.