Alcatraz Wharf Alcatraz in the 1850s to permit the landing of men and building materials to construct a fort, completed in 1859. In 1867, the "General McPherson" was built to serve the island and other military institutions in the San Francisco Bay Area, as Alcatraz became a long-term military prison from 1868. The steamer towed officers, prisoners and food and water supplies to island between 1867 and 1886, landing at the dock twice daily before being replaced. During the time as a federal penitentiary, a prisoner once attempted to escape on a boat from the boat by dressing as an officer. The
Alcatraz Federal Penitentiary Alcatraz Federal Penitentiary The Alcatraz Federal Penitentiary or United States Penitentiary, Alcatraz Island (often just referred to as Alcatraz or The Rock) was a maximum high-security federal prison on Alcatraz Island, off the coast of San Francisco, California, which operated from August 11, 1934, until March 21, 1963. The main prison building was built in 1910–1912 during its time as a United States Army military prison; Alcatraz had been the site of a citadel since the 1860s. The United States Disciplinary Barracks, Pacific Branch on Alcatraz had been acquired by the United States Department of Justice on October 12, 1933,