What happened to Judy Garland’s sisters with whom she performed at the beginning of her career?

Mary Jane Gumm (1915-1964) was Judy Garland's oldest sister. In adolescence she received some bad reviews and bowed out of performing with the exception of performances at her father's theater. She later married Lee Kahn and changed her first name to "Suzanne". I found no mention of her having had any children. Unfortunately at some point she became an alcoholic. Later at the age of only 48 years old she committed suicide.

http://www.imdb.com/name/nm0347951/bio

Dorothy Virginia Gumm (1917-1977) was Judy Garland's second oldest sister. She was known as "Jimmie" and was considered a masterful and accomplished performer appearing in movies and other venues. She also married during her lifetime and had a daughter named "Judy Gail" and/or "Judaline".

http://www.imdb.com/name/nm0347952/bio