The 165th New York Volunteer Infantry (aka "2nd Battalion Duryee's Zouaves" or "Smith's Zouaves").
One Hundred and Sixty-fifth Infantry.—Lieut.-Cols., Abel Smith, Jr., Governeur Carr, William R. French; Majs., Governeur Carr, Felix Angus, William W. Stephenson. The 165th, the 2nd battalion, Duryea's Zouaves, was originally recruited for a nine months' term, but was afterwards changed to three years. Only six companies were recruited, principally from New York city and Brooklyn, and were mustered into the U. S. service between, Aug. and; Dec., 1862, for three years. In 1864, four new companies joined the battalion in the field and were consolidated with the original six companies. The battalion left the state Dec. 2, 1862, sailing for New Orleans, and on its arrival was assigned to the 3rd brigade, 2nd (Sherman's) division, 19th corps, Department of the-Gulf. It participated in skirmishes in March, 1863, at North pass, Ponchatoula and Berwick bay, sustaining a few casualties, and was actively engaged throughout the long siege of Port Hudson, losing heavily in the assault of May 27. Its losses during the siege amounted to 106 killed, wounded and missing, among the mortally wounded being the gallant Lieut.-Col. Abel, who fell in the assault of May 27. It accompanied Franklin's expedition to Sabine pass, Tex., in Sept., 1863, and was later twice engaged at Vermilion bayou. In the 3rd brigade, Emory's division, it took part in Banks'. Red River expedition in the spring of 1864, fighting at Sabine crossroads, Pleasant Hill, Cane river crossing and Mansura. The loss at Sabine cross-roads was 48 killed, wounded and missing, and at Pleasant hill, 49. Returning north, the regiment was in action in September at Berryville, Va., but sustained no loss. When Dwight's 1st division, Army of the Shenandoah, left the valley in April, 1865, as a part of the 3rd brigade, the regiment accompanied it to Washington and subsequently to Savannah, Ga. Under Maj. Stephenson it was mustered out at Charleston, S. C, Sept. I, 1865, having lost by death during its term of service 2 officers and 44 men killed and mortally wounded; 2 officers and 79 men died of disease and other causes; total deaths, 127, of whom 18 men died in the hands of the enemy.
https://dmna.ny.gov/historic/reghist/civil/infantry/165thInf/165thInfMain.htm
Both the history and photograph album of the regiment can be read on Internet Archive.org.
Album of the Second Battalion Duryee Zouaves: https://archive.org/stream/albumofsecondbat00newy#page/n7/mode/2up
History of the Second Battalion Duryee Zouaves:
https://archive.org/stream/secondbattalion00newyrich#page/n5/mode/2up