Vera Ellen's waist size was only 21 inches around, according to the celebrity body measurement website CelebRiot.com. At 5 feet 4 inches tall, she weighed only 95 pounds.
While in her thirties, Vera Ellen became anorexic and very thin, which led to her rapid aging. Speculation is that it was the death of her infant daughter from Sudden Infant Death Syndrome that led to her anorexia. As she became more and more anorexic and depressed, she withdrew from her Hollywood life as well as her public life. This makes it easier to understand her tiny waist line as well as her very low weight.