Brian Thomas Borthwick (1920-1989) (1920–1989) Parents William Borthwick Ruth Margery Rigby Children Simon William Frederick Borthwick Charles Thomas Borthwick Sara Marjorie Borthwick Nicholas James Borthwick Timothy Michael Borthwick Siblings William Jason Maxwell Borthwick Margaret Ruth Borthwick Elinor Valerie Borthwick Partners Jennifer Ruth Fryer