O. F. Strahl was born on the banks of the Muskingum, came to Tennessee in his youth, and was as thoroughly identified with the State as any one of her sons. He gave to the Fourth Tennessee its drill and discipline, and made it a noted regiment; and, succeeding A. P. Stewart in command of his brigade, added splendor to the reputation won for it by that accomplished soldier. When General Strahl entered upon the Tennessee campaign he was just recovering from a dangerous wound received at the battle of Atlanta on the 22d of July. He was a very accomplished tactician, and always handled his regiment and brigade with ease and skill.
Source: Confederate Military History Volume 8:
Tennessee Chapter X