Somewhere south of the DELCO plant, there was a wye between that track, the line south to lytle, and the line that went to downtown Dayton. A Meijer was built just east of the wye, which was a little bit south of Stroop Rd. While the downtown connector did go through the NCR factory complex, it only had a spur into Dayton State Hospital, probably for coal delivery. The spur must have had a grade crossing over Wilmington Ave, and possibly Irving Ave. as well. (While on the subject, the VA Hospital in West Dayton also had a rail spur. Again, while I can't say for certain that these were never used for passenger service, I think more than likely these were primarily for coal deliveries to fuel their furnaces and/or power plants.)
On this same downtown line, a railroad bridge STILL stands over Patterson Blvd., complete with PRR engravings, despite not having a train for over 30 years. I remember still seeing some rails embedded in pavement behind the University of Dayton as recently as the early 90's. Other than that, little physical evidence of the line remains.
When Interstate 675 was being built in the 1980s, originally there was going to be an overpass over the line to Lytle. A big to-do was made about how a bridg would be a waste of money with the tracks abandoned, so the right-of-way was in-filled instead. Note that there was a plan to run a light-rail line between Dayton and Centerville along this corridor; it was to be called "DART" for Dayton-Area Rapid Transit. Ironically, the same acronym would eventually be used in Dallas.
As for the trackage in Lebanon, OH, is it really "land-locked" or rail-isolated? I thought I'd heard they had a connection to the outside world somewhere in the Middletown area. They were going to connect to Brecon/Blue Ash by restoring about 2.5 miles of abandoned track, but apparently the public utilities commission wouldn't allow it.