The birth records of a healthy newborn identified only as "Baby Girl Bouvier" at Southampton Hospital on the evening of July 28, 1929, will be donated by the hospital Thursday to the John F. Kennedy Presidential Library and Museum in Boston.

Discovered in 2009, the four-page, handwritten medical file and a one-page typed discharge summary appear to be the first documented records in the life of a woman who would captivate the world as Jacqueline Kennedy Onassis.

They describe a 14-day hospital stay, typical at the time, of a "newborn female Catholic" weighing in at 8 pounds who was "born healthy, slept well, nursed well" and received a "final diagnosis" of "normal infancy" from a "Dr. Caldwell."...