The dead included an engaged couple and several members of their families.
State police Trooper Charles Swiney said two children survived the crash.
After the collision, the truck smashed into a rock wall and burst into flames. The driver, the lone occupant, was also killed.
A pastor for the party said they were travelling to a wedding in Iowa, and the engaged couple planned their own wedding for July.
Leroy Kauffman, pastor of Marrowbone Christian Brotherhood, said: "They'll have a wedding in heaven, I guess."
David Mikael Taclino
Inyu Web Development and Design
Creative Writer
