Here is a couple paragraphs and the web page it came from

http://www.civilwarhome.com/confedsignalcorps.htm

On falling back from Corinth, the signal men being sufficiently instructed to go on duty were dispersed to several points in the command. Clagett with one party going to Mobile, Davidson with another to Vicksburg, and Elcan Jones with another to Kirby Smith across the river. These were three good men meriting the promotion they afterwards got. All of them became captains in the Signal Corps, and Elcan Jones, the hero of Battery No. 1, was, at the end of the war, Chief Signal Officer to General Joseph E. Johnston.

Although, as has been shown, the Signal Service was in active and useful operation on several theatres of war--in the East in 1861, and early in 1862 in the West--it was not until April 19th, 1862, that the act was approved organizing the Signal Corps as a distinct branch of the Confederate army, and the Secretary of War was authorized to establish it as a separate corps or to attach it to the Adjutant and Inspector's Department or to the Engineer Corps. The Secretary decided to attach it to the Adjutant and Inspector-General's Department, and May 29th, 1862, was issued General Orders No. 40, A. & I. G. O., creating the Signal Bureau, with Major Win. Norris, of General Magruder's staff, as the head of it. No uniform was prescribed for the Signal Corps. The officers wore the uniform of the general staff of the same grade, and the detailed men wore that of the arm of the service to which they belonged, and on the rolls of which they were borne as detailed men. The Signal Corps, as organized, consisted of one Major Commanding, ten Captains, ten first and ten second-class Lieutenants and twenty Sergeants--there were no privates, as men were detailed from the line of the army whenever wanted, and when their services were no longer required they returned to their respective commands.