[CIVIL WAR, LIBBY PRISON]. Autograph letter signed (“James H. Wing, Sr. Col.”), prisoner of war, at Libby Prison, Richmond, Virginia, to his father, William Wing, now power of attorney, 28 January 1864. One-page, small 4to (318 x 197 mm), on lined paper, old folds, paper reinforcements on verso, old adhesive residue, docketed on verso. A PRISONER OF WAR WRITES HOME FROM LIBBY PRISON. Col. Wing writes to his father, requesting him power of attorney while he is imprisoned at the Confederate Libby Prison. He writes: “I will here add I was captured on the 3rd of May 1863 and have been a prisoner in the hands of the Confederate Government since that time”. He encloses the autograph document for power of attorney (old folds, some splitting, paper reinforcements on verso, old adhesive residue).