From the Richmond Dispatch, 8/29/1862, p. 1, c. 1
Post-Office Robbery. – A. B. Martin, a private in the Washington Artillery, was yesterday arrested by Detective Roach, in his room at the Spotswood Hotel, charged with abstracting letters from the Post-Office in this city. At the time of his arrest he had in his possession about 120 letters, the larger portion of which had never been opened. In his pocket-book were two checks for $50 each, drawn by ------- Thompson on some banking-house in Augusta, Ga. These, he stated, he found in the street. He had also a transportation ticket to Mobile and obtained a Provost Marshal's pass to leave the city on Wednesday. He was committed to Castle Thunder. His success in getting possession of so large a number of letters is attributable to his having access to the office through a familiar acquaintance with one of the clerks. This clerk, missing some letters, put the detective on the track of the robber.