DECATUR, IL (AP).- A central Illinois museum has added its first significant artifact linked to Abraham Lincoln. The Macon County History Museum in Decatur on Monday unveiled a spindle-back, cane-seat chair Lincoln used in his Springfield law office. Local residents Carolynn and Eric DeVore donated the chair. They say it’s been in their family since Lincoln gave it to an ancestor in 1861. Eric DeVore says Lincoln gave eight chairs and a couch to his great-great grandfather. DeVore believes his great-great grandfather worked as a custodian in Lincoln’s office. Local residents Carolynn and Eric DeVore donated the chair. They say it’s been in their family since Lincoln gave it to an ancestor in 1861. Eric DeVore says Lincoln gave eight chairs