===========================+==================================+ No. Name. | Army Rank when Appointed. | ---------------------------+----------------------------------+ 1 Jonathan Williams |Major Corps of Engineers | 2 Jonathan Williams |Lieut. Col. Corps of Engineers | 3 Joseph G. Swift |Colonel Corps of Engineers | 4 Alden Partridge |Captain Corps of Engineers | 5 Sylvanus Thayer |Captain Corps of Engineers | 6 Rene E. DeRussy |Major Corps of Engineers | 7 Richard Delafield |Major Corps of Engineers | 8 Henry Brewerton |Captain Corps of Engineers | 9 Robert E. Lee |Captain Corps of Engineers | 10 John G. Garnard |Captain Corps of Engineers | 11 Richard Delafield |Major Corps of Engineers | 12 Peter G. T. Beauregard |Captain Corps of Engineers | 13 Richard Delafield |Major Corps of Engineers | 14 Alexander H. Bowman |Major Corps of Engineers | 15 Zealous B. Tower |Major Corps of Engineers | 16 George W. Cullum |Lieut. Colonel Corps of Engineers | 17 Thomas G. Pitcher |Colonel 44th Infantry | 18 Thomas H. Ruger |Colonel 18th Infantry | 19 John M. Schofield |Major General, U. S. A | 20 Oliver O. Howard |Brigadier General, U. S. A | 21 Wesley Merritt |Colonel 5th Cavalry | 22 John G. Parke |Colonel Corps of Engineers | 23 John M. Wilson |Lieut. Colonel Corps of Engineers | 24 Oswald H. Ernst |Major Corps of Engineers | 25 Albert L. Mills |1st Lieutenant 1st Cavalry | 26 Hugh L. Scott |Major 14th Cavalry | 27 Thomas H. Barry |Major General U. S. A | ---------------------------+----------------------------------+