37th Infantry Regiment was organized during the spring of 1862 with men recruited in the counties of Clarke, Lowndes, Greene, De Soto, Jasper, and Claiborne. After participating in numerous battles in Mississippi the unit was assigned to General Hebert's Brigade in the Department of Mississippi and East Louisiana. It was captured when Vicksburg fell and during the siege it lost 17 killed, 56 wounded, and 7 missing. Exchanged, the regiment contained 26 officers and 442 men in December, 1863. It then served under Generals Mackall, Cantey, and Featherston in the Army of Tennessee. The 37th fought in the Atlanta Campaign, endured Hood's winter operations in Tennessee, and ended the war in North Carolina. It reported 5 killed and 27 wounded of the 453 engaged at Iuka, had 19 killed and 62 wounded at Corinth, and sustained 81 casualties at Hatchie's Bridge. Many were disabled in Tennessee, and early in 1865 its ten companies were reduced to three and the unit was redesignated the 37th Battalion. It surrendered in April. The field officers were Colonels Orlando S. Holland and Robert McLain; Lieutenant Colonels William S. Patton, Samuel H. Terral, and William W. Wier; and Major John McGee. http://www.itd.nps.gov/cwss/regiments.cfm
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James Martin enlisted as a Private in Company G (Yancey Guards), 37th Mississippi Infantry April 1, 1862 in Smith County, Mississippi, captured at Vicksburg July 4, 1864, paroled July 6, 1863, the regiment was exchanged intact, marching out for parole camp, they were allowed some period of time of furlough, then to report to parole camp to await exchange, which occurred later that year, he appears not to have returned to the regiment as his presence is not noted on muster rolls thereafter
Record of Events Company G
Stationed at Columbus, Mississippi, March 15-April 30, 1862.
April 18.— Yancy Guards left lake on Southern [Mississippi]
Railroad for Meridian.
April 21.— Thence on Mobile and Ohio Railroad for Columbus,
Mississippi.
Stationed at Columbus, Mississippi, May-June 1862.
Stationed at Saltillo, July-August 1862.
Stationed at Waterford, Mississippi, September-October 1862.
Stationed at Snyder's Mill, November-December 1862.
[For record of events, see Company B.
Stationed in bivouac in Yazoo County, Mississippi, November-
December 1862.
December 2.— Covered retreat of Major-General Price's Army
Corps from Abbeville and had a slight skirmish with Federal cav-
alry at Oxford, Mississippi.
Stationed near Snyder's Bluff, January-February 1863.
Stationed at Enterprise, Mississippi, April 30-October 31, 1863.
On the day of last muster this company was held in reserve
during the engagement between the enemy ironclad gunboats and
our batteries at Snyder's Bluff. During the siege of Vicksburg
most of the company, served with Hogg's Battery.]
Stationed at Snyder's Bluff January-February 1863.
Stationed at parole camp near Enterprise, November-December
1863.
Since last muster a portion of the company (three commis-
sioned officers and twelve privates) have been declared exchanged
and ordered to duty.
Stationed at [illegible], January-February 1864.
Stationed at Atlanta, Georgia, July August 1864.
M269: Compiled Service Records of Confederate Soldiers Who Served in Organizations From the State of Mississippi
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For their arduous roll during the Vicksburg Campaign, see Edwin Bearss 3 Volumn work, The Vicksburg Campaign. Also their location on the siege line opposite the Glass Buyou, just to the South of the Stockade Redan, see Warren E. Grabau, Ninety-Eight Days, A Georgrapher's View of the Vicksburg Campaign, Maps 59-64.