CAPTION: NOTES: Man and location unidentified. "Mine be it to have contributed to the enlightenment and the joys of the mind, to the things of the spirit, to all that tends to bring into the lives of the toilers of Pittsburgh sweetness and light." Andrew Carnegie. PHOTOGRAPHER: DATE: c1900. HEADING: Pittsburgh. Industries. Iron and Steel. #: A1409. From the Collections of the Pennsylvania Department, The Carnegie Library of Pittsburgh.