37-year-old Kathleen Douglas is also charged with six counts of homicide by vehicle while under the influence, as well as multiple counts of aggravated assault by vehicle, and a number of other offenses.
Police say Douglas was driving her SUV on Route 219 at the Meade Run Road intersection on the afternoon of August 31 when it crossed the center line and hit a car head-on.
Her 12-year-old daughter Olivia Douglas and 6-year-old nephew Jarrett Costanzo were pronounced dead at the scene. Douglas and her 10-year-old son were flown to trauma centers for treatment of serious injuries. 62-year-old Gary Beimel, 55-year-old Elaine Beimel, 54-year-old David Cuneo and 81-year-old Florence Donachy, all of St. Marys, were also pronounced dead at the scene.
Douglas is in McKean County Jail on $750,000 bail.