She spent three years at Erskine before taking the top job at Seton Hill for the 2012 season. She stayed in touch with Scerbo, often seeking his guidance and showing up at the Duquesne alumni game.
"She was a very happy person, very passionate about life, about her players, about her job and most importantly about her family," Scerbo said.
Quigley, a native of Baltimore, was married and had a young son, Gavin, the school said.
The bus operator, Mlaker Charter & Tours, of Davidsville, Pa., is up-to-date on its inspections, which include bus and driver safety checks, said Jennifer Kocher, a spokeswoman for the state Public Utility Commission, which regulates bus companies.
The agency's motor safety inspectors could think of no accidents or violations involving the company that would raise a red flag, she said, though complete safety records weren't available Saturday.
On Tuesday, another bus carrying college lacrosse players from a Vermont team was hit by a sports car that spun out of control on a wet highway in upstate New York, sending the bus toppling onto its side, police said. One person in the car died.
And last month, a bus carrying 42 high school students from the Philadelphia area and their chaperones slammed into an overpass in Boston, injuring 35. Authorities said the driver had directed the bus onto a road with a height limit.