Her biographer, Lynn Sally, tells the Los Angeles Times ( http://lat.ms/15SAyvx) that Evans died of natural causes on Aug. 3 in Las Vegas.
Born Mary Lee Evans in 1926, she was working in celery fields near Los Angeles when she answered an ad for Hollywood chorus girls. That led to modeling jobs and to burlesque, where she had an act imitating Marilyn Monroe.
She later founded a museum that featured Sally Rand's fans and lingerie from Gypsy Rose Lee. It moved to Las Vegas in 2006 and is now called the "Burlesque Hall of Fame."
Evans also started the Miss Exotic World burlesque pageant, which is still going.
Information from: Los Angeles Times, http://www.latimes.com