document / house of representatives Letter from the secretary of war, transmitting abstract of returns of the militia of all the States document Letter from the chairman and members of the United States atomic energy commission : transmitting pursuant to law the second semiannual report of the United … document Letter from the secretary of war transmitting report of contingent expenses of the War Department for the year ending June 30, 1861 document Letter from the secretary of war, transmitting The official Army Register U.S.A.F. Unit Code Letters / by Roger A. Freeman and George Pennick