Pierce's correspondence with Davis, all pre-war, revealing his deep friendship with Davis and predicting that civil war would result in insurrection in the North, was sent to the press. Pierce's words hardened abolitionist sentiment against him.[157][158]
Jane Pierce died of tuberculosis in Andover, Massachusetts in December 1863; she was buried at Old North Cemetery in Concord, New Hampshire. Pierce was further grieved by the death of his close friend Nathaniel Hawthorne in May 1864; he was with Hawthorne when the author died unexpectedly. Hawthorne had controversially dedicated his final book to Pierce. Some Democrats tried again to put Pierce's name up for consideration as the 1864 presidential election unfolded, but he kept his distance; Lincoln easily won a second term. When news spread of Lincoln's assassination in April 1865, a mob gathered outside Pierce's home in Concord, demanding to know why he had not raised a flag as a public mourning gesture. Pierce grew angry, expressing sadness over Lincoln's death but denying any need for a public gesture. He told them that his history of military and public service proved his patriotism, which was enough to quiet the crowd.