Pittsburgh in the 1940s

Pittsburgh, Pennsylvania, August 1941.

Point State Park (established 1950)

Pittsburgh Air-Quality Problem Recalls the Bad Old Days - WSJ

Think Air Quality Doesn't Matter? Look at Pittsburgh in the 1940s

Pittsburgh Air-Quality Problem Recalls the Bad Old Days - WSJ

Pittsburgh in the 1940S' Photographic Print - Marion Post Wolcott

Think Air Quality Doesn't Matter? Look at Pittsburgh in the 1940s

History of Pittsburgh - Wikipedia

Think Air Quality Doesn't Matter? Look at Pittsburgh in the 1940s

Pittsburgh Air-Quality Problem Recalls the Bad Old Days - WSJ

For Workers, Hospitals Have Become the New Steel Mills — Minus the

Memorable Pittsburgh Moments: The 1940s

Pittsburgh Steel: Over 29 Royalty-Free Licensable Stock