Pittsburgh in the 1940s

Pittsburgh, Pennsylvania, August 1941.

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

What Pittsburgh Looked Like When It Decided It Had a Pollution

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

The North Side's Manchester Neighborhood Isn't All Victorians

H)our History Lesson: The Development and Contributions of

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

Pittsburgh History – Area Businesses that Are Gone

Memorable Pittsburgh Moments: The 1940s

What Pittsburgh Looked Like When It Decided It Had a Pollution

The Odd, Mysterious & Fascinating History of Pittsburgh - The

History of Pittsburgh - Wikipedia

Vintage Pittsburgh photos from the 1930s, 1940s and 1950s help

What Pittsburgh Looked Like When It Decided It Had a Pollution