Gloria Stuart died in Brentwood in 2010. She was 99 or 100 years old when she died.
Gloria Gaynor was born on September 7, 1949.
It charted in January, 1979
Yes according to the new york times Gloria Foster died from diabetes September 29, 2001 (http://query.nytimes.com/gst/fullpage.html?res=9B03E1D7163CF936A35753C1A9679C8B63)