RAIL ROADS yesterday & today

[8D] i remember a lot of diffrent RR’S when i was a kid so help me if you can fill in the blanks

ACL SBD L&N CLINCH FIELD SCL WM B&O C&O =CSX
AC DT&I DM&I CV GTW D&M BCR IC GB&W =CN
ATSF BN SLSF GN NP SPS CB&Q =BNSF
MP WP SP MKT CNW SSW CRI&P D&RGW = UP
L&A MSRC GWWE GWWR TFM PANAMA CANAL RWY = KCS
MILW SOO =CPR
NYC PRR EL WABASH = CR
N&W SOU = NS
CR = NS/CSX
A LOT MORE TO NAME BUT OUTTA TIME FEEL FREE TO FIX

A correction.

Before Conrail - New Haven Railroad, NYC, PRR became Penn Central.

Penn Central was originally a mix of a failing NYC and PRR - but later on Jan 1 1969 the New Haven became a part of PC.

Try this site. It should save you a lot of time.
http://laurent.aublette.free.fr/en/intro_en.html

Use the Railroad Family Tree section.

Or, there’s a place right on this site:

http://www.trains.com/story/story_list.asp?idMenuCategory=1&idMenuSubCategory=12&idMenuMinorCategory=1201

Carl