 
History of the Unit: Named for their first commander, they were organized at Boston in 1861. Colonel Fletcher Webster (son of Senator Daniel Webster) was killed in command of the Regiment at 2nd Bull Run on 30 August 1862.
In the Antietam Campaign: A three-year unit recruited largely from Boston, the 12th suffered the highest percentage of casualties among all Federal Regiments at Antietam.
"The reorganization of the army in early September, 1862, made Ricketts' Division a part of Hooker's (1st) Corps, and as a part of Hartsuff's Brigade the 12th Regt. joined in the operations which forced the Confederates out of Frederick, Md., and on toward South Mountain. The 12th was engaged in the battle of South Mountain, Sept. 14, suffering only slight loss. On the 17th, at Antietam, it fought in the [Miller's] Bloody Cornfield, losing 224 officers and men, of whom 74, including Major Elisha Burbank and Assistant Surgeon A. A. Kendall, were killed or mortally wounded. Here it came into conflict with the famous Texas Brigade and captured the colors of the 1st Texas Infantry"1.
Colonel Coulter, in his after-action report for the Brigade said
"The Twelfth Massachusetts had killed and disabled eleven officers of fifteen taken into the field. The loss of this regiment, owing to its position, was by far the most severe in the brigade. Major Burbank commanded at the commencement of the action and was disabled early. He performed his whole duty while in the field. Captain Allen, who next assumed command, was also severely wounded. I cannot express too high an opinion of this officer. He has proved himself one of the most gallant officers in the brigade. The command of this regiment next devolved upon Capt. B. F. Cook, who commanded during the reminder of the action, and brought the regiment off the field."
We have 220 individuals in the AotW database for this unit:
| Co. |
Rank |
Name |
Casualty? |
Details* |
| A | Pvt | Burke, Dennis A. | WIA 09/17 |  | | A | Pvt | Dwelley, George C. | WIA 09/17 |  | | A | Corp | Dyer, Nathaniel H. | KIA 09/17 |  | | A | Corp | Ferguson, William | WIA 09/17 |  | | A | Pvt | Hinds, Patrick | WIA 09/17 |  | | A | Pvt | Kelleher, Patrick | WIA 09/17 |  | | A | Corp | Kimball, William L. | WIA 09/17 | | | A | Pvt | Kummer, Henry W. | KIA 09/17 | | | A | Pvt | McCabe, James | WIA 09/17 |  | | A | Pvt | McCarthy, Thomas F. | KIA 09/17 |  | | A | Pvt | Murdock, George | WIA 09/17 |  | | A | Pvt | Norwood, james W. | KIA 09/17 |  | | A | Pvt | O'Brien, James | KIA 09/17 |  | | A | Pvt | O'Donnell, Michael | KIA 09/17 |  | | A | Lt | Orne, George W. | MWIA 09/17 |  | | A | Pvt | Seavey, William H. | WIA 09/17 |  | | A | Pvt | Sprague, Jr., Samuel | WIA 09/17 |  | | A | Sgt | Tinkham, Cornelius Granville | MWIA 09/17 |  | | A | Pvt | Tobin, John | WIA 09/17 |  | | A | Lt | White, William G. | KIA 09/17 |  | | A | Pvt | Whitney, Edmund S. | KIA 09/17 |  | | B | Pvt | Baldwin, Joseph H. | WIA 09/17 |  | | B | Pvt | Campbell, Patrick | WIA 09/17 |  | | B | Pvt | Cavanaugh, John | WIA 09/17 |  | | B | Pvt | Collins, James | WIA 09/17 |  | | B | Pvt | Cronan, Daniel | AWOL 09/12 |  | | B | Pvt | Cushing, Thomas J. | KIA 09/17 |  | | B | Pvt | Daley, James | AWOL 09/16 |  | | B | Pvt | Davidson, Herbert | WIA 09/17 |  | | B | Pvt | Desmond, Bartholomew | KIA 09/17 |  | | B | Pvt | Dobson, William | WIA 09/17 |  | | B | Pvt | Donovan, Patrick | KIA 09/17 |  | | B | Pvt | Duran, Alonzo G. | KIA 09/17 |  | | B | Pvt | Edmester, Lemuel A. | WIA 09/17 |  | | B | Pvt | Fernald, Robert | KIA 09/17 |  | | B | Pvt | Foster, Ansel J. | WIA 09/17 |  | | B | Sgt | French, George H. | WIA 09/17 |  | | B | Pvt | Gorman, James B. | WIA 09/17 |  | | B | Sgt | Hough, Palmer W. | WIA 09/17 |  | | B | Pvt | Isaac, Alexander | KIA 09/17 |  | | B | Pvt | Keefe, John A. | WIA 09/17 |  | | B | Pvt | Kelley, Andrew | WIA 09/17 |  | | B | Pvt | Little, Milo G. | WIA 09/17 |  | | B | Sgt | Mann, Richard | WIA 09/17 |  | | B | Pvt | Murray, Robert | KIA 09/17 |  | | B | Capt | Packard, Charles T. | WIA 09/17 |  | | B | Pvt | Porter, George W. | KIA 09/17 |  | | B | Pvt | Prescott, Asa D. | WIA 09/17 |  | | B | Pvt | Rogers, Nathan A. | MWIA 09/17 |  | | B | Pvt | Ryerson, John R. | WIA 09/17 |  | | B | Pvt | Sargent, Walter H. | WIA 09/17 |  | | B | Pvt | Savage, Miner W. | WIA 09/17 |  | | B | Pvt | Smith, Granville H. | Died 10/20 |  | | B | Pvt | Tuttle, Joseph P. S. | WIA 09/17 |  | | B | Pvt | Wentworth, George C. S. | WIA 09/17 |  | | C | Pvt | Clayton, William H. | WIA 09/17 |  | | C | Pvt | Deere, Elias H. | WIA 09/17 |  | | C | Pvt | Gillespie, Robert | WIA 09/17 |  | | C | Pvt | Hazletine, Moses | MWIA 09/17 |  | | C | Pvt | Jenks, John B. | MWIA 09/17 |  | | C | Pvt | Kiernan, Felix | WIA 09/17 |  | | C | Pvt | Leatherman, Benjamin R. | WIA 09/17 |  | | C | Pvt | Leonard, James F. | WIA 09/17 |  | | C | Pvt | Lyons, Branch | WIA 09/17 |  | | C | Pvt | McCaslin, Frank | WIA 09/17 |  | | C | Pvt | McLaughlin, Michael | WIA 09/17 |  | | C | Pvt | Morrison, George H. | WIA 09/17 |  | | C | Pvt | O'Toole, Patrick | WIA 09/17 |  | | C | Pvt | Perry, James E. | WIA 09/17 |  | | C | Pvt | Preston, Michael | WIA 09/17 |  | | C | Pvt | Rand, William L. | WIA 09/17 |  | | C | Pvt | Randolph, Joseph J. | WIA 09/17 |  | | C | Pvt | Richardson, Sylvester B. | KIA 09/17 |  | | C | Pvt | Ryan, James F. | WIA 09/17 |  | | C | Pvt | Simonds, Timothy | MWIA 09/17 |  | | C | Pvt | Whitmarsh, John Q. | KIA 09/17 |  | | C | Pvt | Whittier, Charles | WIA 09/17 |  | | D | Pvt | Casperson, John P. | KIA 09/17 |  | | D | Pvt | Dunlop, James | WIA 09/17 |  | | D | Pvt | Frost, Edward M. | WIA 09/17 |  | | D | Pvt | Frye, Daniel M. | WIA 09/17 |  | | D | Pvt | Grant, Thomas | WIA 09/17 |  | | D | Pvt | Lewis, James | WIA 09/17 |  | | D | Pvt | Parker, Robert | WIA 09/17 |  | | D | Pvt | Pierce, Sidney C. | KIA 09/17 |  | | D | Pvt | Rollins, Andrew J. | KIA 09/17 |  | | D | Pvt | Seymour, Robert J. | WIA 09/17 |  | | D | Pvt | Turner, Warren C. | KIA 09/17 |  | | D | Pvt | Willey, Charles | WIA 09/17 |  | | D | Lt | Williams, Joseph Otis | WIA 09/17 |  | | E | Corp | Ayers, Benjamin F. | KIA 09/17 |  | | E | Pvt | Bemis, Harry | WIA 09/17 |  | | E | Pvt | Brown, William B. | WIA 09/17 |  | | E | Capt | Cook, Benjamin Franklin | |  | | E | Pvt | Davis, Franklin | WIA 09/17 |  | | E | Pvt | Driscoll, Patrick | WIA 09/17 |  | | E | Pvt | Ellsworth, Daniel W. | WIA 09/17 |  | | E | Pvt | Fisk, Charles H. | KIA 09/17 |  | | E | Pvt | Fitzsimmons, James H. | WIA 09/17 |  | | E | Pvt | Fletcher, Giles E. | WIA 09/17 |  | | E | Pvt | Gale, Josiah B. | KIA 09/17 |  | | E | Pvt | Gibbs, Benjamin S. | WIA 09/17 |  | | E | Pvt | Grant, John S. | WIA 09/17 |  | | E | Corp | Grover, Hazel L. | MWIA 09/17 |  | | E | Pvt | Hicks, Charles H. | AWOL 09/10 |  | | E | Pvt | Hoyt, William C. | KIA 09/17 |  | | E | Pvt | Judson, Isaac D. | KIA 09/17 |  | | E | Pvt | Kidder, Chauncey H. | WIA 09/17 |  | | E | Pvt | Lajoy, Joseph | KIA 09/17 |  | | E | Pvt | Maguire, John | WIA 09/17 |  | | E | Pvt | McFarland, William H. | WIA 09/17 |  | | E | Pvt | Murphy, James B. | MWIA 09/17 |  | | E | Pvt | Parker, Clark | KIA 09/14 |  | | E | Pvt | Peters, Adam | WIA 09/17 |  | | E | Pvt | Peters, John H. | WIA 09/17 |  | | E | Pvt | Place, John | WIA 09/17 |  | | E | Corp | Rice, Sylvester H. | KIA 09/17 |  | | E | Pvt | Riva, Charles E. | WIA 09/17 |  | | E | Corp | Swarman, Frederick | WIA 09/17 |  | | E | Pvt | Thorne, Benjamin F. | KIA 09/17 |  | | E | Pvt | Tower, Christopher P. | WIA 09/17 |  | | E | Sgt | Wehrum, Charles C. | WIA 09/17 |  | | F | Corp | Allen, James A. | WIA 09/17 |  | | F | Pvt | Bunker, Eli | WIA 09/17 |  | | F | Pvt | Childs, George W. | WIA 09/17 |  | | F | Pvt | Dhalberg, F. Malcom | WIA 09/17 |  | | F | Pvt | Hurd, Hiram A. | KIA 09/17 |  | | F | Pvt | Manchester, Francis A. | WIA 09/17 |  | | F | Pvt | Perkins, George A. | KIA 09/17 |  | | F | Pvt | Snell, Luther T. | WIA 09/17 |  | | F | Pvt | Stevens, Harrison | WIA 09/17 |  | | F | Pvt | Stoddard, John S. | WIA 09/17 |  | | F | Pvt | Tinkham, George F. | WIA 09/17 |  | | F | Pvt | Wall, Thomas W. | WIA 09/17 |  | | G | Sgt | Arnold, Moses N. | WIA 09/17 |  | | G | Pvt | Birmingham, Michael | WIA 09/17 |  | | G | Pvt | Cobb, Charles H. | WIA 09/17 |  | | G | Pvt | Curtis, Benjamin | KIA 09/17 |  | | G | Lt | Cushing, Lysander F. | KIA 09/17 |  | | G | Corp | Damon, Henry | WIA 09/17 |  | | G | Pvt | Fitts, James | MWIA 09/17 |  | | G | Pvt | Foley, Maurice | KIA 09/17 |  | | G | Pvt | Ford, Elliott W. | WIA 09/17 |  | | G | Pvt | Frisbie, Albert | WIA 09/17 |  | | G | Pvt | Gallagher, James H. | WIA 09/17 |  | | G | Pvt | Gilman, George H. | WIA 09/17 |  | | G | Pvt | Hooker, Edwin B. | WIA 09/17 |  | | G | Pvt | Howland, Charles A. | WIA 09/17 |  | | G | Pvt | Jacobs, William F, | KIA 09/17 |  | | G | Pvt | Jenkins, Edward P. | WIA 09/17 |  | | G | Pvt | Kenney, Rufus J. | WIA 09/17 |  | | G | Pvt | Knowles, Charles E. | WIA 09/17 |  | | G | Corp | McGill, Florence | WIA 09/17 |  | | G | Pvt | Perry, Jr., Josiah F. | WIA 09/17 |  | | G | Pvt | Pool, Elbridge G. | MWIA 09/17 |  | | G | Corp | Pool, Francis W. | WIA 09/17 |  | | G | Pvt | Porter, Richard | KIA 09/17 |  | | G | Pvt | Ramsdell, Seth | WIA 09/17 |  | | G | Capt | Reed, Edward Payson | WIA 09/17 |  | | G | Corp | Reed, Lewis | WIA 09/17 |  | | G | Sgt | Smith, James G. | WIA 09/17 |  | | G | Pvt | Walker, William T. | WIA 09/17 |  | | G | Pvt | Williamson, Franklin S. | KIA 09/17 |  | | I | Pvt | Adlington, Joseph S. | WIA 09/17 |  | | I | Pvt | Austin, James H. | KIA 09/17 |  | | I | Pvt | Belcher, Edward E. | WIA 09/17 |  | | I | Pvt | Bryant, Luther S. | WIA 09/17 |  | | I | Pvt | Burnham, Isaac | WIA 09/17 |  | | I | Pvt | Carey, Patrick | WIA 09/17 |  | | I | Pvt | Clark, Joseph I. | WIA 09/17 |  | | I | Pvt | Clow, Charles W. | WIA 09/17 |  | | I | Pvt | Crockett, Daniel T. | WIA 09/17 |  | | I | Corp | Darling, Harvey A. | KIA 09/17 |  | | I | Pvt | Dyer, Abram B. | WIA 09/17 |  | | I | Pvt | Ferris, Daniel | WIA 09/17 |  | | I | Pvt | Harnett, Garrett | WIA 09/17 |  | | I | Pvt | Hayden, George | WIA 09/17 |  | | I | Pvt | Hayward, James S. | KIA 09/17 |  | | I | Pvt | Heath, George E. | WIA 09/17 |  | | I | Pvt | Henry, George P. | MWIA 09/17 |  | | I | Pvt | Holbrook, Randall J. | KIA 09/17 |  | | I | Pvt | Jaques, Charles H. | WIA 09/17 |  | | I | Sgt | Johnson, Charles E. | KIA 09/17 |  | | I | Pvt | Kimball, Charles H. | MWIA 09/17 |  | | I | Pvt | Page, Walter S. | WIA 09/17 |  | | I | Pvt | Peach, John | WIA 09/17 |  | | I | Pvt | Peck, Rufus A. | Died 09/23 |  | | I | Pvt | Randall, Peleg F. | WIA 09/17 |  | | I | Pvt | Rickards, Alden | KIA 09/17 |  | | I | Corp | Ripley, Henry W. | POW 09/15 |  | | I | Capt | Ripley, John | WIA 09/17 |  | | I | Pvt | Shergold, Nehemiah S. | WIA 09/17 |  | | I | Pvt | Sherman, Henry C. R. | KIA 09/17 |  | | I | Pvt | Swallow, Alexander | WIA 09/17 |  | | I | Lt | Thompson, Warren | POW 09/15 |  | | I | Pvt | Wentworth, Henry M. | WIA 09/17 |  | | I | Pvt | Wood, William A. | WIA 09/17 |  | | K | Pvt | Allen, Edward F. | WIA 09/17 |  | | K | Pvt | Allen, Isaac F. | KIA 09/17 |  | | K | Pvt | Allen, William | WIA 09/17 |  | | K | Capt | Allen, Jr., David | WIA 09/17 |  | | K | Corp | Crouse, James T. | MWIA 09/17 |  | | K | Sgt | Doten, Edward W. | WIA 09/17 |  | | K | Pvt | Driscoll, John O. | WIA 09/17 |  | | K | Pvt | Farnsworth, Andrew J. | WIA 09/17 |  | | K | Pvt | Forsyth, James | WIA 09/17 |  | | K | Pvt | Haskell, Edward | WIA 09/17 |  | | K | Corp | Haskell, William B. | WIA 09/17 |  | | K | Lt | Hazel, Edwin | WIA 09/17 |  | | K | Pvt | Ingersoll, Amos M. | MWIA 09/17 |  | | K | Pvt | Maxwell, Charles L. | KIA 09/17 |  | | K | Corp | Morey, James N. | KIA 00/00 |  | | K | Pvt | Rabardy, Julius | WIA 09/17 |  | | K | Pvt | Simonds, John S. | WIA 09/17 |  | | K | Pvt | Staten, Henry | KIA 09/17 |  | | K | Pvt | Tracy, Charles | KIA 09/17 |  | | K | Pvt | Wilson, George | WIA 09/17 |  | | F&S | Maj | Burbank, Elisha | MWIA 09/17 |  | | F&S | ASrg | Kendall, Albert A. | KIA 09/17 |  | | F&S | Sgt | Russell, Charles G. | |  |
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Notes1 Commonwealth of Massachusetts, Adjutant General, Massachusetts Soldiers, Sailors, and Marines in the Civil War, 8 Vols, Norwood (MA): Norwood Press, 1931-35, Vol 2, pg. 1 [AotW citation 1223]
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