Houston
Radial Lines
Port Terminal Railway Association
Galveston, Harrisburg & San Antonio (later SP, now UP)
Galveston, Houston & Henderson
Trinity & Brazos Valley (later Burlington-Rock Island, now BNSF)
International Great Northern (later MoPac, now UP)
Galveston, Harrisburg & San Antonio (later SP, now UP)
Rosenburg to West Junction
San Antonio & Aransas Pass (later SP)
Missouri-Kansas-Texas
Houston & Texas Central (later SP, now UP)
Eureka to Navasota
Trinity & Brazos Valley (later Burlington-Rock Island, now BNSF)
Belt Junction to Dallas (Forest Avenue)
International Great Northern (later MoPac, now UP)
Belt Junction to Spring Junction
Spring Junction to Palestine (West Junction)
Houston East & West Texas
Tower 71/Tower 210 to Shreveport
International Great Northern (later MoPac, now UP)
Gulf Coast Junction to Beaumont (ex-MP line)
Texas & New Orleans (later SP, now UP)
Dawes to Beaumont (ex-SP line)
Houston North Shore (later MoPac, now UP)
Orbital Lines
Galveston, Harrisburg & San Antonio (later SP, now UP)
Harrisburg Junction to West Junction
GH&SA/H&TC/T&NO (later SP, now UP)
Houston Terminal (West Junction to Dawes)
Houston Belt & Terminal
Belt Junction to Gulf Coast Junction
Transverse Lines
Houston Belt & Terminal
T&NO Junction to Lyons
Lyons to Belt Junction
Double Track Junction to Tower 87
Settegast/Tower 87 to Gulf Coast Junction