The Architect of Pittsburgh’s Golden Age In the heart of America’s industrial crescendo, where the smoke of progress met the ambition of a rising nation, Frederick John Osterling wove a tapestry of stone and steel that would define the skyline of Pittsburgh. Born in 1865 in Dravosburg, Pennsylvania, Osterling was a child of the very landscape he would later immortalize through architecture. His early years in Allegheny City provided a…