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 stream of curses and obscenities before he was taken away by guards to his cell to await execution. Guiteau appealed his conviction, but his appeal was rejected. 29 days before his execution, Guiteau composed a lengthy poem asserting that God had commanded him to kill Garfield in order to prevent Secretary James G. Blaine's "scheming" to war with Chile and Peru. Guiteau also claimed in the poem that Chester A. Arthur knew the assassination had saved the United States and that Arthur's refusal to pardon him was the "basest ingratitude". Guiteau also (incorrectly) presumed that President Arthur would pressure the