You might want to look around the Civil War Battles page to see if you can locate them both in some of the campaigns listed.
http://www.fortunecity.com/victorian/pottery/1080/
George Martin
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RAPIDAN to JAMES RIVER CAMPAIGN VIRGINIA 4 - 31 May 1864
Including
Wilderness Battle 5-7 May
Todd’s Tavern 8 May
Corbin’s Bridge 8 May
Po River 9 May
Andrew’s Tavern 10 May
Alsop’s House 10 May
Spotsylvania 12 May
Spotsylvania Courthouse 19 May
http://www.fortunecity.com/victorian/pottery/1080/rapidan_to_james_rvr_va_4may64.htm
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14th Regiment, Georgia Infantry
14th Infantry Regiment was organized by Colonel A.V. Brumby during the spring of 1861 with men recruited in Jasper, Johnson, Pierce, Dougherty, and Worth counties. Ordered to Virginia the unit served under General Floyd in the Kanawha Valley, then was assigned to General W.Hampton's, J.R. Anderson's, and E.L. Thomas's Brigade, Army of Northern Virginia. It was active from Seven Pines to Cold Harbor, endured the battles and hardships of the Petersburg siege south of the James River, and ended the war at Appomattox. The regiment had 379 effectives in April, 1862, and sustained 138 casualties during the Seven Days' Battles, 28 at Cedar Mountain, and 52 at Second Manassas. It lost 8 killed and 67 wounded at Chancellorsville and twelve percent of the 331 engaged at Gettysburg. On April 9, 1865, there were 20 officers and 147 men present. The field officers were Colonels A.V. Brumby, Robert W. Folsom, Richard P. Lester, and Felix Price; Lieutenant Colonels James M. Fielder, Washington L. Goldsmith, William A. Harris, and W.S. Ramsey; and Major Charles C. Kelley.
BATTLES:
Seven Pines 31 May-1 June 1862
Williamsburg-5 May 1892
Mechanicsville
Gaines Mill-27 June 1862
Frazier’s Farm
Malvern Hill 1 July 1862
Cedar Run 9 August 1862
The Second Battle of Manassas-28-30 August 1862
Harper’s Ferry 14 September 1862
Fredericksburg-13 December 1862
Chancellorsville-1-4 May 1862
Gettysburg-1-3 July 1863
Spotsylvania Court House-12 May 1864.
Appomattox General Robert E. Lee 9 April 1865.
http://www.researchonline.net/gacw/unit51.htm
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58th Regiment, Massachusetts Infantry
Organized at Reedville April 25, 1864. Moved to Alexandria, Va., April 28-30. Attached to 1st Brigade, 2nd Division, 9th Army Corps, Army of the Potomac, to July, 1865.
SERVICE.-Moved to Bristoe Station, Va., and join 9th Army Corps May 1-2, 1864. Campaign from the Rapidan to the James May 3-July 15. Battles of the Wilderness May 5-7; Spottsylvania May 8-12; Ny River May 10; Spottsylvania Court House May 12-21. Assault on the Salient May 12. Stannard's Mills May 21. North Anna River May 23-26. On line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Bethesda Church June 1-3. Before Petersburg June 16-18. Siege of Petersburg June 16, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Peebles' Farm or Peeble's Farm September 29-October 2. Boydton Plank Road Hatcher's Run, October 27-28. Fort Stedman March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Occupation of Petersburg April 3. Pursuit of Lee April 3-9. At Cumberland Church till April 20. Moved to City Point, thence to Alexandria April 20-28. Duty there till July 15. Grand Review May 23. Mustered out July 14. Moved to Reedville July 15-18, and discharged July 26, 1865.
Lost during service 10 Officers and 129 Enlisted men killed and mortally wounded and 156 Enlisted men by disease. Total 295.