Sleep all A. M. At 2 P. M. Ordnance depot in the city blows up with a terrific explosion. Killing & wonding 1000 people, & destroying 8 blocks of building mostly warehouses, 3 steamboats burned & 8000 bales of cotton. In the city in the evening, shells still exploding. Dock all on fire hardly a whole glass in town, & sashes all shattered to pieces.
SOURCE: “Diary of John S. Morgan, Company G, 33rd Iowa Infantry,” Annals of Iowa, 3rd Series, Vol. 13, No. 8, April 1923, p. 603