From the Richmond Dispatch, 7/12/1862
Bridge Guards. - Company A, of the City Battalion, numbering 75 men, have been sworn in under Captain J. H. Greanor, and put to work guarding the three bridges spanning the James river at this point. This work was formerly entrusted to the Second Class militia, but on the promulgation of the order a few evenings since relieving them from guard duty, the honor was conferred as above. As yet Company A is the only one mustered into service, though one or more of the others are making fair headway. As the bridges are guarded night and day, the company is detailed in two parts and no doubt have their hands full, though he duty exacted of the members does not involve any great personal risks to themselves.