In this episode of 'Who Do You Think You Are?', entertainer, Rhonda Burchmore, investigates her mysterious maternal grandfather who abandoned her mother as a child. In the process, she's thrilled to discover a performer in her family. On her father's side, Rhonda finds an intriguing guardian angel, who came to the rescue of her widowed great grandmother and her 11 children. As she unravels the mystery, Rhonda discovers a fascinating entrepreneur who amassed a fortune and left an amazing legacy to the people of Sydney.