Natchez, like her near and far river neighbors, has railways now, and is adding to them—pushing them hither and thither into all rich outlying regions that are naturally tributary to her. And like Vicksburg and New Orleans, she has her ice-factory: she makes thirty tons of ice a day. In Vicksburg and Natchez, in my time, ice was jewelry; none but the rich could wear it. But anybody and everybody can have it now. I visited one of the ice-factories in New Orleans, to see what the polar regions might look like when lugged into the edge of the tropics. But there was nothing striking in the aspect of the place. It was merely a spacious house, with some innocent steam machinery in one end of it and some big porcelain pipes running here and there. No, not porcelain—they merely seemed to be; they were iron, but the ammonia which was being breathed through them had coated them to the thickness of your hand with solid milk-white ice. It ought to have melted; for one did not require winter clothing in that atmosphere: but it did not melt; the inside of the pipe was too cold.

Sunk into the floor were numberless tin boxes, a foot square and two feet long, and open at the top end. These were full of clear water; and around each box, salt and other proper stuff was packed; also, the ammonia gases were applied to the water in some way which will always remain a secret to me, because I was not able to understand the process. While the water in the boxes gradually froze, men gave it a stir or two with a stick occasionally—to liberate the air-bubbles, I think. Other men were continually lifting out boxes whose contents had become hard frozen. They gave the box a single dip into a vat of boiling water, to melt the block of ice free from its tin coffin, then they shot the block out upon a platform car, and it was ready for market. These big blocks were hard, solid, and crystal-clear. In certain of them, big bouquets of fresh and brilliant tropical flowers had been frozen-in; in others, beautiful silken-clad French dolls, and other pretty objects. These blocks were to be set on end in a platter, in the center of dinner-tables, to cool the tropical air; and also to be ornamental, for the flowers and things imprisoned in them could be seen as through plate glass. I was told that this factory could retail its ice, by wagon, throughout New Orleans, in the humblest dwelling-house quantities, at six or seven dollars a ton, and make a sufficient profit. This being the case, there is business for ice-factories in the North; for we get ice on no such terms there, if one take less than three hundred and fifty pounds at a delivery.

The Rosalie Yarn Mill, of Natchez, has a capacity of 6,000 spindles and 160 looms, and employs 100 hands. The Natchez Cotton Mills Company began operations four years ago in a two-story building of 50 x 190 feet, with 4,000 spindles and 128 looms; capital $105,000, all subscribed in the town. Two years later, the same stockholders increased their capital to $225,000; added a third story to the mill, increased its length to 317 feet; added machinery to increase the capacity to 10,300 spindles and 304 looms. The company now employ 250 operatives, many of whom are citizens of Natchez. 'The mill works 5,000 bales of cotton annually and manufactures the best standard quality of brown shirtings and sheetings and drills, turning out 5,000,000 yards of these goods per year.'{footnote [New Orleans Times-Democrat, 26 Aug, 1882.]} A close corporation—stock held at $5,000 per share, but none in the market.

The changes in the Mississippi River are great and strange, yet were to be expected; but I was not expecting to live to see Natchez and these other river towns become manufacturing strongholds and railway centers. [LOTM p409-11]

From Wikipedia:

During the American Civil War Natchez was surrendered by Confederate forces without a fight in September 1862. Following the Union victory at the Battle of Vicksburg in July 1863, many refugees, including former slaves, freed by the Emancipation Proclamation, began moving into Natchez and the surrounding countryside. The Union Army officers claimed to be short on resources and unable to provide for the refugees. The Army planned to address the situation with a mixture of paid labor for freed slaves on government leased plantations, the enlistment of able bodied males who were willing to fight in the Union Army and the establishment of refugee camps where former slaves could be provided with education. However, as the war continued, the plan was never effectively implemented and the leased plantations were crowded, poorly managed and frequently raided by Confederate troops who controlled the surrounding territory. Hundreds of people living in Natchez, including many former slaves and refugees, died of hunger, disease, overwork or were killed in the fighting during this period. In order to manage the tens of thousands of freed Black slaves, the Union Army created a concentration camp in Natchez in a natural pit known as the Devil's Punchbowl, where thousands died of starvation, smallpox, and other diseases.

After the American Civil War, the city's economy rapidly revived, mostly due to Natchez having been spared the destruction visited upon many other parts of the South. From 1870 to 1871, Robert H. Wood served as Mayor of Natchez, he was the one of only five African Americans to served as mayor during the Reconstruction-era, and he may be the first black mayor in the entire country. Natchez was also home to politicians Hiram Rhodes Revels and John R. Lynch, both African Americans. [11]