1864 an explosion at the nearby Washington Arsenal killed a woman supervisor and 20 teenage girls, most of them Irish, who worked packing explosives and cartridges. President Lincoln led the funeral procession to the cemetery and attended the graveside ceremonies. Later a monument was erected over the graves of 16 of the victims. A sculpture of a grieving young woman stands atop a marble column on the monument. Local artist Lot Flannery, of the Flannery Brothers Marble Manufacturers, sculpted the monument. Grand funerals Several nationally important or otherwise remarkable funerals have taken place at the Congressional Cemetery. These funerals featured long formal processions starting at the White House or the Capitol, moving down Pennsylvania Avenue to E Street SE, and thence to the cemetery. Parts of this road were specially funded by Congress to facilitate these processions. The form and protocol of these funerals formed the basis for later U.S. state funerals, including those of Presidents Abraham Lincoln and John F. Kennedy. These funerals include those held to honor: George Clinton, vice president, funeral held April 22, 1812. The procession included President James Madison as well as the officers and members of both houses of Congress. Jacob Jennings Brown, Commanding General of the United States Army and War of 1812 hero, funeral held February 24, 1828. William Henry Harrison, president, 1841. After services at the White House the procession included the new president John Tyler and former president John Quincy Adams, as well as officers and members of the Congress and the state legislature of Maryland, extending over two miles long. Abel P. Upshur, Secretary of State, Thomas Walker Gilmer, Secretary of the Navy, Commodore Beverly Kennon, Chief of the Bureau of Construction & Equipment, David Gardiner, former state senator from New York, victims of a February 28, 1844, explosion on the . Virgil Maxcy, chargé d'affaires of the U.S. to Belgium was also killed in the explosion, but he was buried separately in his family plot. John Quincy Adams, former president, former senator, and representative, who died in the Capitol, funeral held February 28, 1848. Adams is buried in the United First Parish Church in Quincy, Massachusetts. Dolley Madison, former First Lady, funeral held July 16, 1849. President Zachary Taylor and his Cabinet attended services at St. John's Church in Lafayette Square, whence the cortege proceeded to the Public Vault at the Congressional Cemetery. Zachary Taylor, president, funeral held