The Manchester and Augusta Railroad (also M&A, M&A Railroad Co., Manchester & Augusta RR, and Manchester & Augusta Railroad Company) was a Southeastern railroad that operated following the American Civil War. The Manchester and Augusta Railroad was chartered in the 1870s, and built a line from Sumter, South Carolina, southwest to Denmark, South Carolina.
The Atlantic Coast Line Railroad was formed on July 16, 1898, by an Act of Assembly of South Carolina. It absorbed the Manchester and Augusta Railroad, as well as numerous other lines, on the same day. At the time of its acquisition by the Atlantic Coast Line Railroad the M&A had 9 locomotives; 6 from the Baldwin Locomotive Works (No. 310, 311, 312, 313, 314, 320) and three from Rogers Locomotive and Machine Works (No. 317, 318, 319).