Mr Hodgson

In the novel A Murder is Announced, Miss Marple mentions Mr Hodgson who was the bank manager in St. Mary Mead. According to Miss Marple he went on a cruise and came back with a wife who was young enough to be his daughter. He had no idea where she came from, except what she told him. It is plausible that Mr Hodgson is a parallel of Colonel Easterbrook, who also has a wife who is much younger than him.