Braddock is also the location of the first of Andrew Carnegie's 1,679 (some sources list 1,689) public libraries in the US, designed by William Halsey Wood of Newark, New Jersey, and dedicated on March 30, 1889. The Braddock Library included a tunnel entrance for Carnegie's millworkers to enter a bathhouse in the basement to clean up before entering the facilities (which originally included billiard tables). An addition in 1893, by Longfellow, Alden and Harlow (Boston & Pittsburgh, successors to Henry Hobson Richardson), added a swimming pool, indoor basketball court, and 964-seat music hall that included a Votey pipe organ. The building was rescued from demolition in 1978 by the Braddock's Field Historical Society, and is still in use as a public library. The bathhouse has recently been converted to a pottery studio; the music hall is currently under restoration.