I am searching for any information available on Horace Bixby and others from Mark Twain's days as a pilot. Specifically, I am looking for what happened after the Mississippi was closed to commercial traffic at the outbreak of the War of Northern Aggression in 1861. I do know that Bixby went on to pilot a gunboat for the North but there is where my information ends. Any and all pointers are appreciated. Thank you. Marc Koechig