The papers released Monday for researchers and scholars feature never-before-seen records relating to her efforts to restore the state rooms of the White House and her Feb. 14, 1962, televised tour of the building.
The Kennedy Onassis papers were donated by her children, Caroline Kennedy and John F. Kennedy Jr.
The papers' release follows the September release of Jacqueline Kennedy Onassis' 1964 oral history interviews.
Library director Tom Putnam says the papers demonstrate the former first lady's legendary attention to detail and the range of her understanding of art, history and diplomacy. The works include handwritten notes on the principals guiding the restoration project.
