Thanks to the wife of my Edward Jones rep, Bridgette (Riley) Mitchell, I have items from her grandfather's (William (Bill) Henry Riley) collection to share that I have scanned. Bill Riley and his son Thomas Riley both worked for the Frisco out of Memphis. Attached is a map of the Talkback Speaker system locations as laid out in Tennessee Yard in October, 1957. It will print to 8 /12 x 14 paper, landscape.
Wow - if nothing else, it's an exceedingly detailed map of Tennessee Yard's track arrangement and all of the accompanying buildings. Hope that there's more items to come, Keith. Best Regards,