The Northampton County coroner's office says 42-year-old Kelly Quier was killed in the crash Tuesday afternoon in Upper Nazareth Township, Northampton County.
Township police say an initial investigation indicates Quier left her lane while driving the van for Northampton Area School District and struck the recreational vehicle behind driven by 71-year-old Richard Street.
A girl on board the van was hospitalized but officials say she's expected to make a full recovery.
A state police accident reconstruction team is investigating.
