James D. Porter, Confederate Military History, a library of Confederate States Military History: Volume 7.1, Tennessee
Clement Anselm Evans, Ed.

Brig.-Gen. Stephen D. Lee, who ably commanded the troops that received the assault made by Sherman's forces, said in his official report: ‘Besides the regiments already mentioned for gallantry, I would mention the Third, Thirtieth and Sixty-second Tennessee regiments, occupying the pits where the enemy made their most formidable attack. They displayed coolness and gallantry, and their fire was terrific.’ Colonel Turner of the Thirtieth and Colonel Clack of the Third, the first as major and the other as captain, had received the baptism of fire at Fort Donelson. The distinction then won had its sequel at Chickasaw Bayou.

Later in the campaign against Vicksburg, when Grant, after various failures, had landed south of Vicksburg, and advanced to the railroad between Jackson and Vicksburg, a Tennessee brigade, under Brig.-Gen. John Gregg, which had been on duty at Port Hudson, and was ordered thence to Jackson, made a memorable fight against great odds.

Gregg's brigade consisted of the Third Tennessee, Col. C. H. Walker; Tenth and Thirtieth Tennessee (consolidated), Col. Randall W. MacGavock; Forty-first, Col. R. Farquharson; Fiftieth, Lieut.-Col. T. W. Beaumont; First battalion, Maj. S. H. Colms; and the Seventh Texas, Col. H. B. Granbury.

Under the order of Lieutenant-General Pemberton, this brigade left its camp near Jackson, on the evening of the 11th of May, 1863, and camped that night at Raymond. Without definite information or adequate means of obtaining it, no course was left to General Gregg but to await the movements of the enemy. General Pemberton had ‘intimated’ that the main movement of the enemy was towards Edwards depot, but at 10 o'clock a. m. of the next day a Federal force moved up rapidly and opened with artillery upon Gregg's pickets.