लेखक: Todd Wilson PE

Todd Wilson is an award-winning professional engineer in Pittsburgh who has been photographing and writing about bridges his whole life. He graduated from Carnegie Mellon University with a double major in civil engineering and engineering and public policy. He serves as a trustee of Pittsburgh History & Landmarks Foundation. Helen Wilson, a graduate of Carlow University, worked as a teacher, editor, and writer for the Pittsburgh Public Schools. She is a historical researcher and writer and vice president of the Squirrel Hill Historical Society in Pittsburgh.