Not only did Mildred Washington have a deceased older sister by the same name (her parents thriftily recycled the name for the next girl child), but she succeeded a wife to Col. Henry "Harry" Willis Col. Henry Willis who was *also* named Mildred!
Unless there has been a major Mixmaster (possible), this was Mildred Lewis, daughter of "Councillor" John Lewis of Warner Hall Mildred Willis - and Willis was her third husband in ten years. (She was his second wife, with Mildred Washington - another unlucky bride - being his third.)