I have an interesting and long-overdue followup on the lines mentioned here. The Lancaster & Northern and Schuylkill & Conestoga Valley shared interlocking directorates. Both were part of a promotion by Easton investors, many of them prominent in business and law, to establish a cement plant near Lancaster. Easton is adjacent to the cement belt, and one of the investors, George F. Coffin, was already prominent in the Nazareth Cement Company. He and others organized the Conestoga Portland Cement Co. to exploit deposits of stone suitable for cement near Brownstown, PA (north of Lancaster). The Lancaster & Northern was chartered in 1906 to built the line which would bring in construction materials for the company's mill and haul out the cement; it would connect the mill with the PRR to the south, somewhere near its crossing of Conestoga Creek, and with the Reading to the north near Millway.
Conestoga Portland doesn't seem, as far as I can tell, to have finished its mill; it was still "in process of erection" in 1911. By then (in 1910), the Schuylkill & Conestoga Valley had been chartered to run from the Lancaster & Northern near the mill at Brownstown up to Gibraltar, where it could connect with the PRR Schuylkill Valley Branch. Contemporary papers (Reading Eagle, August & September 1912) talked of backing from the PRR, extension up through Catasauqua and Shoenersville to the cement belt, and a branch from Shoenersville to South Bethlehem, the Bethlehem Steel mill at Hellertown, and to the Delaware River at Coffeetown (with, presumably, a connection to the PRR Bel-Del branch), but the charter filed doesn't seem to cover that, and it's doubtful that the PRR was very interested in such a dramatic expansion.
By 1914, the treasurer and director of the Lancaster & Northern and Conestoga Portland was William H. Vreeland, a Bayonne glue manufacturer and banker. The state reported that the Lancaster & Northern and Schuylkill & Conestoga Valley were still "inchoate" in October 1916, with offices at Easton, but the annual report for that year declares them "out of existence--unable to locate".