Subject
- Mellon, Andrew W. (Andrew William), 1855-1937.1
- Mine explosions--Pennsylvania.1
- Monongahela River (W. Va. and Pa.)1
- Motion picture journalists--United States--History.1
- National League of Professional Baseball Clubs.1
- Notre Dame University--Football.1
- Ohio River--History.1
- Orphans.1
- Paddle steamers--Ohio River.1
- Parades--Pennsylvania--Pittsburgh.1
- Pittsburgh (Pa.)--Buildings, structures, etc.1
- Pittsburgh (Pa.)--History--20th century.1
- Railroad accident report.1
- Railroad accidents.1
- Railroad trains.1
- Railroads, Cable.1
- Ruined buildings--Pennsylvania--Pittsburgh.1
- Sibert, William L. (William Luther), 1860-1935.1
- Speeches, addresses, etc.1
- Sports.1