After she was born, her mother ran away from home, when Marie was 16 to become a ballerina, after a couple of years working as a shop girl, she was finally married in 1924.
An accomplished singer, since a little girl, she sang and played the harp on an episode of "The Munsters" (1964).
Attended King Edward High School in Vancouver, British Columbia, Canada.
Attended Le Conte Middle School in Hollywood, California.
Became a naturalized citizen of the United States.
Before she starred in "The Munsters" (1964) that same year, she was deeply in debt, her film career was over and was suffering from depression.
Before she was a successful actress, she was a dancer and had worked at various nightclubs in Vancouver, British Columbia.
Began her career as a contract player for Paramount in 1942.
Best remembered by the public for her starring role as Lily Munster on "The Munsters" (1964).
By the time little Margaret entered into grade school, her voice was really strong.
Called off her engagement to Jock Mahoney after she suffered a miscarriage.
Dropped out of King Edward High School at age 15 (which was her sophomore year), to focus more on her dance studies, hence, she attended B.C. School of Dancing.
Engaged to Jock Mahoney. [1949].
Established her movie career and worked as a contract player for Universal in 1945.
Future comedienne Vicki Lawrence said DeCarlo was her childhood television heroine.
Guest-starred in the pilot episode of "Bonanza" (1959) as gold rush entertainer Lotta Crabtree.
Her birth name was Margaret, but she was known by Peggy growing up.
Her future "The Munsters" (1964) co-star, Butch Patrick, said in an interview, his mother was a fan of her movies, long before he co-starred with De Carlo in the series.
Her grandmother's name was Margret Purvis.