Orr sorted through hundreds of original letters, actual ledgers dating back to 1765 in Sewickley and troves of digitized correspondence housed at the Pennsylvania Historical Society in Philadelphia.

Messages left with Preservation Pennsylvania were not returned as of press time on Oct. 17. Forum coordination Teresa Duff, architecture committee chair of the Sewickley Valley Historical Society ...

“When I first got the call about this project, my reaction was shock that there was even a Black community to speak of in Sewickley,” said Brock, 48, a filmmaker and Pennsylvania Western ...