Diary of Gideon Welles: Wednesday, August 10, 1864

The tidings this evening from Mobile, derived from the Rebels, are satisfactory. It is stated that the Tecumseh was sunk by Fort Morgan's guns. I discredit this. She may have grounded or she may have encountered a torpedo; but most likely it was one of the river boats, though they, being of light draft, would be less likely to keep the channel and encounter the obstructions and torpedoes. If the guns of Fort Morgan sunk an ironclad, it was doubtless one of the river monitors.

SOURCE: Gideon Welles, Diary of Gideon Welles, Secretary of the Navy Under Lincoln and Johnson, Vol. 2: April 1, 1864 — December 31, 1866, p. 101

Diary of 2nd Lieutenant John S. Morgan: Sunday, March 5, 1865

Morning with major Boydston to Ft Morgan to go to Ft Gaines No boat. All through fort. Near the pier & within 400 yds. of Ft. a pole which is fixed to the turret of the Gunboat Tecumseh sunk by the explosion of a torpedo, shows the watery grave of 100 brave boys, who are yet in the great iron coffin 30 ft below the surface, I mile out a smokestack sticks out of the water, a little this side the pier is the wreck of the Reb Gunboat Gaines, crippled & beached during the action P. M. in camp. Service at 3. P. M. News — 35 men of our Regt lately exchanged are at New Orleans — Col Benton of 29th Iowa, & Col Glasgow of 23d Iowa appointed Brevet Brig. Genl's by the President, Detailed tonight to take charge of fatigue party tomorrow. All experienced Rail, Road, men called for, to report to Capt Jackson. It is the purpose to make a permanent Rail Road from Ft Morgan to Navy Com & extend around the Bay to Mobile as the Army advances.

SOURCE: “Diary of John S. Morgan, Company G, 33rd Iowa Infantry,” Annals of Iowa, 3rd Series, Vol. 13, No. 8, April 1923, p. 576