Five Irish immigrant laborers murdered in 1832, re-buried in Pennsylvania's ... Art Daily Researchers believe the mass grave contains the remains of about 50 Irish immigrants who died weeks after coming to Pennsylvania to build a railroad in 1832. AP Photo/Matt Rourke. By: Kathy Matheson, Associated Press BALA CYNWYD (AP). Irish Immigrants Laid To Rest In Laurel Hill Cemetery, 180 Years LaterCBS Local Irish Immigrants' Mystery Honored in BurialWall Street Journal Duffy's Cut: Irish immigrant rail workers get reburials in Lower Merion cemeteryDelaware County Daily Times Newsworks.org -Irish Central -Daily Local News all 338 news articles »