Page was murdered in a 1984 home invasion, beaten with a baseball bat by a man now serving life in prison. His ashes are now buried at the Allegheny Cemetery in the city's Lawrenceville neighborhood.
Saturday's ceremony was made possible by Jeremy Krock, an anesthesiologist from Peoria, Ill. Krock organized the Negro Leagues Baseball Grave Marker Project after visiting another black player's grave in 2004 and discovering it was unmarked. Page's is the 28th marker the project has organized.
Before the ceremony took place, Krock told the Pittsburgh Tribune-Review that he and others had spent two years raising money for the marker.
"I'm proud we can honor these players in this small way," Krock said. "We hope to keep the memory of the player alive and to keep the memory of Negro League baseball alive."