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George Stone Benedict post-em note:

For additional information on the "tragic and early death" readers may be interested to learn about the 1871 train wreck that killed him at Wappingers Creek (now Wappingers Falls, NY) - going too quickly over a bridge, it hit an oil tanker train and went into the water.  The following link goes into detail and mentions George S. Benedict in  the body of the article and at the end among those that were killed.  
http://www.newhamburg.net/history/two_disasters.htm

The tragedy could have been avoided. By the time of the Wappinger Creek disaster, an air brake invented by an obscure twenty-two-year-old inventor named George Westinghouse had more than proved its worth on many smaller lines. The big railroads, however, balked at the expensive installation costs that adopting the air brake would have required. But the crash of the Pacific Express prompted an outcry that could not be ignored. The New York Central almost immediately began equipping its passenger trains with Westinghouse air brakes.  For more on this see
http://www.americanheritage.com/articles/magazine/it/1997/3/1997_3_28.shtml