* Cholera Plague of 1849

In 1849, a deadly cholera plague hit Pittsburgh. The parish could not find enough burial places for its deceased members. Parishioners prayed to St. Roch and vowed to keep a day holy if the plague would cease. It did. Another plague hit the South Side in 1853 but no members of St. Michael died. Cholera Day is observed each August in Prince of Peace Parish on the South Side, the successor to St. Michael Parish.