John Wayne Glover was an English-Australian serial killer convicted of the murders of six elderly women, over a period of 14 months from 1989 to 1990 including Winifreda, Lady Ashton, widow of the English-Australian impressionist painter Sir Will Ashton, in suburbs located in Sydney's North Shore. The fact that the victims were all elderly women led to Glover attaining the nickname by the press of The Granny Killer. Following his arrest in 1990, he admitted to the murders and was sentenced to consecutive terms of life imprisonment without the possibility of parole. He hanged himself in prison on 9 September 2005.

Sir John William Ashton, OBE, ROI was a prolific Australian Impressionist artist and director of the National Art Gallery of New South Wales from 1937 to 1943.