before the yard was there, 1950: http://www.historicaerials.com/?poi=10997 I don't know how many of you have checked this site out, but it is amazing (if they have views for the area you want).
You were asking about Wichita and the lines north and east. I live here and have been involved with the Frisco here since the eary 70's. If you would like info, let me know and I will see what I can do. I have a blueprint of both the new yard and the old yard, industrial siding info, etc. Be happy to help you Tony LaLumia