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. Knapp P. Knapp (nephew of Charles J. Knapp) to The Outing Publishing Company, of which Charles J. Knapp was the President, and loans made by the Binghamton Trust Company to the Knapp Banks. Investigations revealed that the Knapp Bank was being bailed out by the Binghamton Trust Company of which Charles J. Knapp was the President. As a result, the Binghamton Trust Company also failed. Both Knapps were charged with criminally transferring money to an institution that they knew to be insolvent. Charles P. Knapp was sentenced to up to two years for his role in the failure. Charles J. Knapp