Alcatraz Federal Penitentiary in January 1934. The hospital facilities were checked by three officials from the Marine Hospital of San Francisco. The Bureau of Prisons personnel arrived on Alcatraz in early February; among them was Loring O. Mills, acting chief clerk. In April 1934, the old material was removed from the prison, holes were cut in the concrete and 269 cell fronts were installed, built using four carloads of steel ordered from the Stewart Iron Works. A legend at the works is that a shipment of cells and iron accidentally fell into San Francisco Bay during transportation from San Francisco Dock to Alcatraz
Alcatraz Citadel coves and bay. In 1882, the citadel was enlarged to provide more accommodation for the families of the military officers working on Alcatraz. Between 1873 and 1895, 32 Native Americans were imprisoned at the citadel on Alcatraz, including 19 Hopi men held in captivity there between January and August 1895 after being transferred from Fort Defiance. The island continued to develop in the 1880s and in 1898 the population of Alcatraz increased dramatically from 26 to over 450 due to the Spanish–American War and placed a demand for new buildings. The original barracks evolved into Building 64 in 1905. The