National Gallery of Art two months after excavation had begun. At the time of its inception it was the largest marble structure in the world. The museum stands on the former site of the Baltimore and Potomac Railroad station, where in 1881 a disgruntled office seeker, Charles Guiteau, shot President James Garfield (see James A. Garfield assassination). As anticipated by Mellon, the creation of the National Gallery encouraged the donation of other substantial art collections by a number of private donors. Founding benefactors included such individuals as Paul Mellon, Samuel H. Kress, Rush H. Kress, Ailsa Mellon Bruce, Chester Dale, Joseph Widener, Lessing J.
Charles J. Guiteau for Garfield at the since-demolished Baltimore and Potomac Railroad Station, getting his shoes shined, pacing, and engaging a cab to take him to the jail later. As Garfield entered the station, looking forward to a vacation with his wife in Long Branch, Guiteau stepped forward and shot Garfield twice from behind, the second shot piercing the first lumbar vertebra but missing the spinal cord. As he surrendered to authorities, Guiteau said: "I am a Stalwart of the Stalwarts. ... [Chester A.] Arthur is president now!" After a long, painful battle with infections, possibly brought on by his doctors' poking and