Trying to find out the following on the Rock at Wichita,KS: When was Cline yd built (continues in use by UP), Cline yd eng jobs–how many per day , was the yd a 24 hr operation? Type of yd pwr used, mainline frt operations–how many per day, symbols, did any locals operate through Wichita on Sub 251? This information I am looking is in the 1965-1980 range. One pre 1965 question is how far did psgr crews run south of Herington did they go to El Reno or did they change at the frt crew swap at Caldwell?