DRF&S Electric Train Denrock/Rock Falls/Sterling In Yorktown, Bureau County, IL A project of Tampico Area Historical Society http://www.tampicohistoricalsociety.citymax.com
SDRF&SW RR in Tampico, IL I'm not sure if the initials stand for Sterling/Denrock/Rock Falls & Southwest Railroad. http://www.tampicohistoricalsociety.citymax.com
