MISSOURI-KANSAS-TEXAS
The M-K-T or the "Katy" was a regional railroad stretching from St Louis, Mo and Kansas City, MO down to San Antonio and Houston, Texas. It's primary commodity was grain enroute to the Gulf Ports. It struggled along for many years and despite a few prosperous years under the Barringer Administration, the railroad became a merger target during the late 1980's and is now part of the large Union Pacific. The fact that its mainline paralleled the Missouri Pacific which also merged into the UP has allowed the UP to operate both lines as basically one way routes to avoid time consuming meets on the largely single track routes.
While I do not have an extensive collection of photos having visited the line only twice, once in 1976 and again in 1977, I am presenting what I have of a now long gone Fallen Flag railroad.
EMD switcher number 31 in St. Louis, MO. St. Louis was reached by way
of a long slow branch off the main near Parsons, KS and was quickly abandoned by
the UP after the merger in 1988.
A few diesels at the Kansas City engine facility. 
March 1976.
A northbound has arrived at Kansas City in the early morning of March 21, 1976.
Parsons, Kansas was the main shop town to the M-K-T. All heavy repairs to the diesels and freight cars were done here.
A red GP7 and a green kitbashed RS3/GP7 in the yard.
GP38 200 was repainted for the nations Bi-Centennial in 1976.
Another mix of red and green on some yard power. 
This forlorn looking Geep sits quietly.
GP40 189 is on a freight waiting for a crew.
GP38 319 and chop-nosed GP7 110 depart the yard for points south.
GP40 195 is southbound passing through the typical grasslands of Oklahoma near
Welch, OK on April 4, 1977.
SW7 # 8 sits in the small Oklahoma City yard on April 3, 1977. Oklahoma
City was reached via a branchline.
The MKT re-painted two older F7 cab units into the newer green paint
scheme. Both at Oklahoma City.
Denison, Texas was a main point along the mainline. The two mains through
Texas, one to San Antonio and the other to Dallas and Houston split here.
Why waste paint and ink on big four digit numbers. Here are number 6
and number 1 working the yard.
Another kit-bashed unit sits under a shed in Denison. April 3, 1977.
GP40 204 at Denison.
Two switchers sit in the very hot sun in Dallas, Texas. Was 51 the last
new unit delivered in the red scheme?
GP38 and a U23B wait with a freight in downtown Dallas. April 2, 1977.
307 is somewhere on the Southern Pacific. Ron Montgomery photos from April
1982.