NPS CWS&SS shows:

30th Battalion, Virginia Sharpshooters (Clarke's)
30th Battalion Sharpshooters was organized in August, 1862, with six companies. The unit was assigned to G.C. Wharton's and A. Forsberg's Brigade and fought in various engagements in East Tennessee and the Shenandoah Valley of Virginia. After the Battle of Waynesborough, it disbanded. Lieutenant Colonel J. Lyle Clarke and Major Peter Otey were in command.

A Guide To Virginia Military Organizations, 1861-1865, Lee A. Wallace, Jr. shows:

30th Bn Va Sharpshooters
Clarke, John Lyle, Lt Coil, 1862-1865
This Battalion, also called the 1st Bn, and Clarke's Bn, was organized Steptember 1, 1862, and filed officers were appointed October 5, 1862. Companies A, B, and C, had formerly served as artillery companies. Company D was composed principally of transfers from artillery companies. The company which became Company C, and Companies E and F, were newly organized companies, and were composed partly of transfers from other Virginia organizations.

Co A, Capt Stephan Adams' Co, enlisted June 22, 1861, and served as Capt Stephen Adams' Btry Va Light Arty; captured at Fort Donaldson, February 16, 1862. After exchange company was reorganized August 24, 1862, and was assigned to this battalion when it was organized, September 1, 1862.

Co B, Caapt Napoleon B. French's Co; formerly Napoleon B. French's Btry Va Light Arty; enlisted July 27, 1861, for one year; mustered September 20, 1861. Part of the company and guns was captured at Fort Donaldson, February 16, 1862; reorganized July 16, 1862, and assigned to the 30th Bn when it organized September 1, 1862. Captains: Napoleon B. French, B.J.McComas

Co C, Western Artillery; formerly Capt Louis A. Vawter's Co Va Arty; enlited march 26, 1862, for three years or the war; assigned to 30th Bn when it organized September 1, 1862. Remarks on rolls show 42 members transfered, August 31, 1862, to Capt Charles E. Vawter's Co (Co D); most members of this company are identified as having served in the 166th Regt [Monroe County] Va Militia. Capt Louis A. Vawter

Co D, Capt Charles E. Vawter's Co; organized September 1, 1862, and composed principally of transfers from Capt Louis A. Vawter's Btry Va Arty, which became Co C of the 39th (?) Bn

Co E, Capt R.C. Hoffman's Co; assigned to 30th Bn September 1, 1862; composed of men enlisted during July and August 1862 for the war, and some transfers from other Virginia organizations.

Co F, Capt L.C. Armstrong's Co, Roane County; enlisted September 3, 1862, for three years or the war. Captains: Lenox C. Armstrong, J.S. Points

Stewart Sifakis in Compendium of the Confederate Armies - Virginia shows

Unit was dispersed at Waynesborough on March 2, 1865
Major Peter J. Ofey was field officer
Gives same assignments as shown by George Martin

Battles:
Kanawha Campaign September 1862
Konxville Siege Nov-Dec 1863
New Market 5/15/1864
Cold Harbor 6/1-3/1864
Lynchburg Campaign june 1864
Monocacy 7/9/1864
3rd Winchester 9/19/1864
Fisher's Hill 9/22/1864
Cedar Creek 10/19/1864
Waynesborough 3/2/1865

JR