Published: Sep 20, 2010 3:54 PM EDT
Updated: Sep 20, 2010 12:55 PM EDT

NEW SMYRNA BEACH, Fla. (AP) - The family of a Florida woman who somehow fell or was pushed off an Amtrak train in Georgia is asking for witnesses to come forward.

Barbara Arteta of New Smyrna Beach was traveling from New York to central Florida when she disappeared Sept. 9 from the train. Her body was found next to the tracks in Jesup, Ga., about 60 miles southwest of Savannah.

The 63-year-old woman had cancer and Parkinson's disease. Her family told The Daytona Beach News-Journal she couldn't have opened an emergency window. They say $1,000 was missing from her purse.

Georgia and Amtrak investigators want to interview passengers, especially those riding in cars 5310, 5311, 5312 and 5313. Witnesses may call the Georgia bureau's tip line at 800-597-8477.