On Nov. 11, 1990, Stormie Jones, the world’s first recipient of a successful simultaneous heart and liver organ transplant at the age of six, died at the Pittsburgh Children’s Hospital in Pittsburgh, Pennsylvania.

Jones’s mother, stepfather and 16-year-old sister flew to Pittsburgh from their Texas home after doctors told them a suitable donor liver had been found. Doctors had expressed confidence that the child would survive her second liver transplant. She received the initial transplant on Feb 14, 1984.

Hospital officials said Jones needed a second liver transplant because the organ she received at Children’s on Valentine’s Day 1984 was ravaged by hepatitis, which could result in kidney failure and death. Doctors say they do not know how she contracted the hepatitis.

Jones, the first of four U.S. patients to receive new hearts and livers simultaneously, underwent the historic double transplant in 1984 because of a genetic disorder that prevented her own liver from processing cholesterol. The condition, known as homogygous familial hypercholesterolemia, resulted in clogged arteries and a heart attack in 1983.