Street MD – At 2055hrs. Whiteford Volunteers were dispatched for motor vehicle accident with rescue in the 3700blk of Grier Nursery Rd. At 2057hrs. Deputy Chief 6PM-6M692 called en-route and were advised that several callers were reporting a 2 vehicle head-on collision with multiple people trapped. DC-6 then requested 2 additional medic units next due rescue unit 2 additional engines for manpower to the scene. This brought medic engine from Bel Air medicrescue from Darlington medic unit from York Co. Delta-Cardiff and engine from Jarrettsville VFCs. At 2102hrs. units arrived and confirmed 3 of the 4 occupants entrapped in both vehicles. Command then requested 2 medi-vacs to the scene. Crews utilized the Jaws-of-Life tools and numerous other hydraulic tools and were able to extricate all patients in about 40 minutes. Three patients were taken by MSP medi-vac Troopers 1 3 and one by M692 to local trauma centers. Units cleared at 2356hrs.Units DC-6PM-6M682R651U671U672YC M57-1R951M992E311M394E714 MSP Troopers 1 3