59th Tennessee, Company I

http://www.militaryhistoryonline.com/genealogy/ancestorcomments.asp...

Served in Col. Eakin's 59th Tennessee. Captured at the siege of Vicksburg. Paroled and possibly served as mounted Infantry for remainder of Civil War.

In Feb 1863 7 members of the 59th Tennessee are killed in a train crash
http://www.nchgs.org/html/train_wreck_1863.html

"Valleys of the Shadow: The Memoirs of Confederate Captain Reuben G. Clark," by Reuben G. Clark. Edited by Willene B. Clark. Reuben Clark enlisted as a lieutenant with the 3rd Tennessee, C.S.A., but most of his service was with the 59th Tennessee. This book relates the experiences of an East Tennessee man who opposed secession in the Confederate army. Clark participated in the Vicksburg campaign, the 1864 Shenandoah Valley campaign, the siege of Knoxville and military activity elsewhere is southwest Virginia and East Tennessee. Captured twice, he ended the war in a Federal prison. Apart from attention to various military actions, Clark's memoirs illuminate the bitter divisions the war brought to heavily Unionist East Tennessee. Perhaps because it was written so long after the war, the narrative expresses little anger toward the Federals. For example, Clarks describes the burning of Chambersburg, Pennsylvania, by Jubal A. Early's cavalry in July, 1864 as a "distressing scene to witness, and one among the many horrible expedients of the war." A brief history of the 59th Tennessee Mounted Infantry (with emphasis on Company I) complements Clark's narrative. (Reviewed by Gary W. Gallagher). This 165 page 1994 reprint costs $ 25.00.

While William isn't mentioned in the above book, it does detail the campaigns and expreiences of the 59th Tennessee.

The re-organized 59th as Mounted Infanrty may have ended the war as guard for Jefferson Davis.
http://www.researchonline.net/tncw/unit32.htm