"Pittsburgh and Western Railroad from 1902. This was originally a narrow gauge system which was standard gauged from 1883 to 1911. It formed the main B&O line west from Pittsburgh. " "1883 B&O completes Wheeling-Pittsburgh route by acquiring narrow-gauge Pittsburgh Southern between Washington, Pa., and Pittsburgh, rebuilds it to standard gauge; PS renamed Baltimore & Ohio Short Line in 1885, merged into the WL&B in 1887
1877 12 19 Pittsburgh, Castle Shannon & Washington begins operation on 4.6 mile narrow gauge line.
PITTSBURGH & WESTERN RAILROAD (PA) 3' Gen 1873 1911sg 200 miles
(
http://pghbridges.com/articles/railroad ... ternrr.htm)
Parker & Karns City Railroad (PA) part of PITTSBURGH & WESTERN RAILROAD
(photo of ex P&KC see:
http://www.usgennet.org/usa/ny/county/a ... llapse.htm) (
http://www.rootsweb.ancestry.com/~pabut ... .htm#karns)
Pittsburgh & North Western Railroad (PA) part of PITTSBURGH & WESTERN RAILROAD
Pittsburgh & Northern Railway (PA) part of PITTSBURGH & WESTERN RAILROAD
Pittsburgh & State Line Railroad (PA) part of PITTSBURGH & WESTERN RAILROAD
Pittsburgh East & West Railroad (PA) part of PITTSBURGH & WESTERN RAILROAD
Pittsburgh Lake Erie Railroad & Western Railroad (PA) part of PITTSBURGH & WESTERN RAILROAD
Pittsburgh New Castle & Lake Erie Railroad (PA) part of PITTSBURGH & WESTERN RAILROAD
1883 01 B&O takes control of Pittsburgh Southern Railway. Narrow gauge portions converted to standard gauge later. (photo of loco:
http://www.liquala.com/ps.html)
PITTSBURGH SOUTHERN RAILROAD (PA) 3' Gen 1876 1883sg 37 miles
Pittsburgh Castle Shannon & Washington Railroad (PA) part of PITTSBURGH SOUTHERN RAILROAD
(photo and article see:
http://www.liquala.com/pcs.html)
1883 01 01 Standard gauge service begins on the Pittsburgh & Western between New Castle Junction and Pittsburgh.
1884 B&O buys controlling interest in Pittsburgh & Western. This line was a part of the old Pittsburgh and Western Railroad, originally a 3-foot (92 cm) narrow-gauge line created in the latter third of the 19th century from a merging of various earlier narrow-gauge lines.
The Fairport Branch
This line began in 1870 as a narrow-gauge line connecting Farmington to Fairport Harbor, named the Painesville and Youngstown Railroad. In 1873, it became the Painesville, Youngstown and Pittsburgh Railroad. In 1886, it was leased to the Pittsburgh and Western Railroad, itself acquired by the Baltimore and Ohio in 1890. It was standardized in 1900, and later became the B&O's Lake Branch or Fairport Branch. At some point, it was extended to Warren."
Sources:
http://www.trains.com/ctr/default.aspx &
http://www.abandonedrails.com/article,
http://www.ngrrlines.com/id22.html