ST. LOUIS (AP).- Dozens of Thomas Jefferson’s books, some including handwritten notes from the nation’s third president, have been found in the rare books collection at Washington University in St. Louis. Now, historians are poring through the 69 newly discovered books and five others the school already knew about, and librarians are searching the collection for more volumes that may have belonged to the founding father. Even if no other Jefferson-owned books are found, the school’s collection of 74 books is the third largest in the nation after the Library of Congress and the University of Virginia. “It is so out of the blue and pretty amazing,” said Washington University’s rare books curator Erin Davis of the discovery that was announced on President’s Day. The books were among about 3,000 that were donated to the school in 1880 after