In the Official Records of the Civil War is a letter from Brigadier General S. Meredith at Paducah, Kentucky, to Gov. O.P. Morton, of Indianapolis, Indiana relating news of the explosion of the Steamer Eclipse. The letter was written the day of the explosion (Jan. 27,1865) and is as follows:
"The Steamer Eclipse blew up at Johnsonville at 6am this day, Ninth Indiana Battery, Captain Brown, on board. Sixty-eight men injured, more or less; ten died. They have arrived at this post. I am doing all I can for them. If you can render any assistance, please do so for the wounded."
A later report would raise the total casualities to 27 killed, and 78, more or less, injured. The letter identifies the soldiers involved as the Ninth Independent Battery Light Artillery. This unit was raised and mustered in Indianapolis, Indiana. Dyer's Compendium indicates that the unit was ordered to Indiana on June 25,1865, and was en route at the time of the explosion. Dyer's indicates that out of 70 officers and men in the unit, only 10 escaped unharmed.
As Alice indicated, local newspaper accounts may be the best way to get a list of casualities. Since the unit was apparently raised in the Indianapolis area, such a major disaster would likely be reported in an Indianapolis newspaper. Also since the casualities of the explosion apparently were in Paducah, Kentucky the same day as the explosion, a local newspaper from that area may also contain details, and a list of casualities. The men were probably treated at the army hospital in Paducah.