Without becoming more tedious than I have already, let me add a few notes conerning Humphrey Hardwick. I have a copy of a roll made by his company commander at the end of 1864, which may be the source of your family history. His name is number 48 on roll. He is listed as age 51, a farmer, married, post office Rabbittown. In each action in which his company took part, the first being Mechanicsville VA, June 26, 1862, he is listed as 'as' (absent, sick). Since Hardwick died on Sept. 20, 1862, he's not listed afterwards. The last company action listed during his lifetime was Harper's Ferry VA, Sept. 16, 1862. Hardwick's company commander lists him as absent, sick.

I can provide a copy of this record from the ADAH. The record on theADAH website is based on his information, but the volunteer who entered battle information made a mistake.
http://www.archives.state.al.us/civilwar/soldier.cfm?id=82197
This isn't at all what's on the original document, written on Dec. 31, 1864. If you wish to have a copy, please forward a mailing address to me at pittsaj14@hotmail.com

His descriptive roll has his age as fifty-two, although it's given as forty-seven at enlistment. Apparently he was a tall man. The roll give his place of birth as Pulaski County KY. Copeis of his service file are available here.

His widow, Hester Hardwick, signed a probate court statement on Jan. 26, 1864, that her husband died at home on Sept. 20, 1862. The are numerous reasons why no Confederate soldier from Alabama wounded during the Maryland Campaign could have been at home in four days. As noted by Robert C. Black, Railroads of the Confederacy, there are no direct rail lines between Harper's Ferry, there being a twenty-mile gap betwen Winchester and Strasburg VA. Most Confederate wounded from this campaign were collected at Warrenton VA, not far from Manassas Junction. Also, in no case would space be given to seriously wounded or sick soldiers who were unable to walk or care for themselves.

Humphrey Hardwick service file includes a roll for June 30, 1862, which shows him absent, sick. He must have been furloughed and died at home, just as stated by his widow.

If the ability to move Humphrey Hardwick cross-country nearly a thousand miles in four days really existed, Confederate military leaders would have used it to reinforce threatened points or attack unsuspecting enemy posts and win the war.