She died in 2000 at the age of 61. At the time, The New York Times reported that Hillary Clinton eulogized Blair as "the best person that one could have as a friend."
The documents portray Blair's relationship with Clinton as both professional and personal. While they appeared to talk extensively about policy and politics, they also discussed books, travel and family.
The Blair documents were donated by her husband, James, in 2005. The documents were processed and completed by 2010 and contain 109 boxes of information that range from Blair's professional materials to her correspondence with the Clintons.
James once helped Hillary Clinton make $100,000 in commodity futures trading, which drew scrutiny for its timing.
According to the Free Beacon, Hillary Clinton was a supporter of making the Blair records public in 2010.