In May of this year, James Cornelius, curator of the Lincoln Collection at the Presidential Library, and Ian Hunt, its new chief of acquisitions, learned that an unknown 3-volume set of Isaac Arnold’s The Life of Abraham Lincoln would be sold at Leslie Hindman Auctioneers in Chicago. The set bears the bookplates of Frank O. Lowden, who was elected governor of Illinois in 1916, and contains 100 original manuscripts by figures of the Lincoln period — including two by Abraham himself, one by Mary, and one by Robert — and 125 fine steel engravings It also contains the handwriting of 9 additional Presidents of the United States, Stephen A. Douglas, Schuyler Colfax, cultural figures like Holmes and Greeley, and a dozen high-ranking Army or Navy officers.