Here is the law and orders from the CS War Department (pages 208-209)-

http://ebooks.library.cornell.edu/cgi/t/text/pageviewer-idx?c=moawar;cc=moawar;q1=slaves;q2=free;q3=negroes;op2=and;op3=and;rgn=pages;idno=waro0129;didno=waro0129;view=image;seq=0220
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This book has a list of over 1800 of these men (starts at page 141)-

http://www.amazon.com/View-Great-Want-Labor-Conscription/dp/1585490180/ref=sr_1_1?ie=UTF8&qid=1383583332&sr=8-1&keywords=%22great+want+of+labor%22#reader_1585490180
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