"MARC (Amtrak)" . . . "MARC train" . . "MARC commuter rail" . . . . . "Maryland Area Regional Commuter (MARC) Trains" . . "3" . . . . . . . . "MARC Train Service" . . . "MARC operations" . . . . . . . . . "MARC" . . . "Maryland Area Rail Commuter (MARC) trains" . "Kawasaki's MARC III Bi-Level coaches" . . . . . . . . . . . "MARC's" . "Penn Line" . . "MARC Brunswick Line" . . "1984" . "MARC commuter rail system" . . . "Maryland Area Regional Commuter Train" . . "Camden line" . "42" . . . . . "Odenton MARC station" . . . . . . "MARC Train System" . . . . . . . . . . . . . . "MARC passenger train" . . . . "Camden Line" . . . . "Marc" . . . "Maryland Area Regional Commuter" . . . . . . . . . . . . "MARC Train" . "MARC commuter train" . "MARC Train" . "Local service continued" . "Maryland Rail Commuter Service" . . . . . . . . . . . . . . "MARC Camden Line" . . .