From ICC Report

No. 2 consisted of car-body type diesel-electric units 6452, 542, RI635, 6047, and 6052, coupled in multiple-unit control, 4 baggage and baggage-express cars, 1 dormitory car, 1 sleeping car, 1 coffee shop-lounge car, 3 chair cars, 1 automatic buffet car, and 3 chair cars, in that order. The cars were of all-steel construction. The first 4 cars were equipped with type F interlock couplers, and the remaining 10 cars had tightlock couplers. The brakes of the train had been tested and had functioned properly when used en route. As the train approached the collision point, the engineer and fireman were in the control compartment at the front of the first diesel-electric unit. The conductor, front brakeman and flagman were at various locations in the cars.
Historical Reports