Robert C. Schenck to John L, Chapman, June 20, 1863

Hon. JoHN L, CHAPMAN, Mayor of Baltimore:

Sir: I am prepared, among other preparations for the defense of Baltimore against a possible attack of the rebels, to construct some lines of intrenchments at points commanding approaches to the city.

You have apprised me that in this emergency the city authorities would furnish the required number of laborers, either by hiring, volunteering, or otherwise.

I desire to have immediately, to be put at the work by 4 o’clock this day, 1,000 men, who, when ready, will report to Lieutenant [John R.] Meigs, of the Engineer Corps, on my staff, for the service.

If you have any difficulty in furnishing the labor, and find it necessary to obtain it or any part of it by some equitable system of impressment, give me notice to that effect at any time, and I will furnish you the military power to enforce such impressment.

very respectfully, your obedient servant,