SPRINGFIELD, Ill. (AP) — A treasure trove of about 130 books once owned by a renowned Abraham Lincoln biographer has been donated to the Abraham Lincoln Presidential Library and Museum in Springfield. The books that once belonged to Benjamin Thomas could be a gold mine for Lincoln scholars as many of them contain the author’s handwritten comments, observances and notations. The donation comes from the Lincoln Land Community College Library, which was given the books by Thomas’ widow, Salome “Sally” Pasfield Thomas, before her death in 1999. Benjamin Thomas lived in Springfield from 1932 until his death in 1956. During that time, his best-known works were published, including “Lincoln’s New Salem” in 1934 and “Abraham Lincoln: A Biography” in 1952.