East and north elevations, approximately 1960s – San Antonio City Hall, Military Plaza, San Antonio, Bexar County, TX Photos from Survey HABS TX-222_courtesy Library of Congress The fourth floor of San Antonio’s City Hall was added in 1927. This photo was taken in the 1960s. Credit: Courtesy / Library of Congress. San Antonio City Hall circa 1960s. Historical photo courtesy of the Library of Congress.