The National Security Act of 1947, Public Law 253, 80th Cong., approved July 26, 1947, created the office of Secretary of Defense and merged the War and Navy Departments into the National Military Establishment. 955 "The National Security Act of 1947, Public Law 253, 80th Cong., approved July 26, 1947, created the office of Secretary of Defense and merged the War and Navy Departments into the National Military Establishment. 6. Robert Smith' 7. John Breckenridge. 8. Caesar A. Rodney. Do 9. William Pinckney. Do 10. Richard Rush Do 11. William Wirt. Do 12. John M. Berrien 13. Roger B. Taney. Do 14. Benjamin F. Butler. Do 15. Felix Grundy. 17. John J. Crittenden Do 18. Hugh S. Legare. 19. John Nelson 20. John Y. Mason. 21. Nathan Clifford 22. Isaac Toucey. 23. Reverdy Johnson 24. John J. Crittenden 25. Caleb Cushing. 26. Jeremiah S. Black 27. Edwin M. Stanton 28. Edward Bates. 29. Titian J. Coffey 30. James Speed. Do 31. Henry Stanbery. 32. William M. Evarts 33. E. Rockwood Hoar. 34. Amos T. Ackerman 35. George H. Williams Mar. 3, 1805 Jan. 20, 1807 Feb. 10, 1814 Mar. 4, 1817 Mar. 5, 1821 Mar. 4, 1825 Mar. 9, 1829 Nov. 15, 1833 Mar. 5, 1841 Apr. 6, 1841 Mar. 6, 1857 Mar. 5, 1861 Dec. 2, 1864 John Adams. Thomas Jefferson. See footnote at end of table. 36. Edwards Pierrepont. 38. Charles Devens. |