Cornelia B. Wilbur (x-1992) was the psychiatrist who worked with Shirley Ardell Mason, also known as Sybil. Dr. Wilbur diagnosed and treated Mason for Dissociative Identity Disorder beginning in 1954 and continuing for 11 years.

She remained friends with Mason for the rest of her life.

Sources

• Ace Weekly Magazine Article - August 2, 2001

1992 deaths | American psychiatrists