The Wabash in 1940's Missouri

Was the Wabash’s mainline thru Hannibal, Missouri double tracked or single tracked in the late 1940’s? Did the Wabash have any switchers assigned to Hannibal, or did the Q do all of the local work there? What types of motive power were usually seen on the Wabash other than FA-2’s, and did the Wabash have any passenger trains on this route?

Thanks in advance,
Christopher