Union forces under Gen. Ambrose E. Burnside captured New Bern on March 14, 1862, after seizing Roanoke Island in February and moving inland. After the battle, Federals established hospitals in the New Bern Academy, the Masonic Lodge, and other buildings, later known collectively as Foster General Hospital. After the war, the remains of Union dead buried in New Bern and the surrounding area, including Beaufort, Hatteras, and coastal locations, were reinterred here, while Confederate soldiers were buried in Cedar Grove Cemetery southeast of here. Established on February 1, 1867, the cemetery includes more than 1,000 unknown soldiers in a separate section and more than forty U.S. Colored Troops in another. It was listed on the National Register of Historic Places in 1997, and its notable monuments include the granite 9th New Jersey Infantry Monument erected in 1905, a Massachusetts granite memorial erected in 1908 for that state's soldiers who died in North Carolina during the war, the Connecticut Monument built in 1908 for Connecticut men who died of yellow fever and combat casualties, and the Rhode Island Monument, dedicated on October 6, 1909, with a granite base topped by a bronze figure.