painted white, forming a visual connections with these nearby symbols of federal government, and a contrast to the surrounding gravestones. They are grouped in rows in the older part of the cemetery where they dominate the landscape. After the Civil War very few congressmen were buried in the cemetery, as their bodies were commonly shipped to their home states or buried in the new National Cemeteries such as Arlington National Cemetery. Cenotaphs were discontinued in 1876 after Massachusetts Senator George Frisbie Hoar stated that "the thought of being buried beneath one of those atrocities brought new terror to death." William Thornton, who served as Architect of the Capitol before Latrobe, is the only person honored with a cenotaph who did not serve as a congressman. Former Speaker of the House Tip O'Neill was honored with a cenotaph in 1994, though it is not in the style of a Latrobe cenotaph. After a 1972 plane crash in which their bodies were lost, Hale Boggs and Nicholas Begich share a cenotaph. These are the only cenotaphs erected since 1876. Public Vault The Public Vault is an early classical revival structure built 1832–34 with federal funds to store the bodies of government officials before burial. A classical marble facade with baroque scrolls decorate the partially subterranean vault. Double wrought iron doors have the words "PUBLIC VAULT" displayed by means of vent holes. Temporary residents of this vault have included three U.S. presidents: John Quincy Adams (1848), William Henry Harrison (1841), and Zachary Taylor (1850). President Harrison stayed in the vault for three months, three times longer than the time he spent as president. First Lady Dolley Madison was interred in the Public Vault for two years, the longest known interment in the vault, while funds were being raised for her re-interment at Montpelier. Her body was transferred to the Causten family vault, located directly across the path from the Public Vault, for another six years before the funds were raised. First Lady Louisa Catherine Adams has been reported as having been interred in the Public Vault, but other sources report that she was interred in the Causten family vault. Adams is now buried next to her husband in the United First Parish Church in Quincy, Massachusetts. Legend says that Lewis Powell spent a night in the vault while avoiding pursuit for his role in the assassination of President Lincoln. Arsenal Disaster Monument In