Irish from other parts of the U.S. also ended up in Pittsburgh while working on the Ohio & Pennsylvania Railroad and the Ohio Canal, and stayed as dockhands or in the coal fields. During 1890, more immigrants arrived and settled ... The organisers have a fantastic line up of events and live music , and the schedule is packed with entertainment. Pittsburgh has a great record of celebrating its Irish heritage, and this has become one of America's finest Irish festivals . ...

Excerpt from:
Pittsburgh Irish Festival - The Irish Diaspora