The monument to the 15th Massachusetts Volunteer Infantry Regiment at Antietam is on the east side of State Route 65, north of the Visitor Center. (Philadelphia Brigade Park tour map; 39°28’42.5″N 77°45’05.5″W; see map) Philadelphia Brigade Park is through the trees behind the monument.

The monument features a wounded lion, still roaring and its right paw raised in definance. A bronze tablet on the front tells the story of the regiment at Antietam. On the back is another bronze tablet listing all of the regiment’s killed and mortally wounded in the battle. At the base of the front is the trefoil that is the symbol of the Union Second Corps. The monument was designed by sculptor A.O. Connor (whose name is on the side under the lion’s paw) and dedicated on September 17, 1900.

The 15th Massachusetts is also honored by a monument at Gettysburg.

Monument to the 15th Massachusetts Volunteer Infantry Regiment on the Antietam battlefieldFrom the front of the monument:

15th REG. MASS. VOLS.

Here, Sept. 17th, 1862, the Fifteenth Reg. Mass.
Volunteers, with the First Company Andrew Sharpshooters
attached, 606 men of all ranks, commanded by
Lieut. Col. John W. Kimball, Gorman’s Brigade
Sedgwick’s Division, Second Army Corps
met and engaged troops of the Brigades of 
Semmes, Early and Barksdale.
Within twenty minutes 330 had fallen, 75 killed
and 255 wounded, 43 dying of wounds.

From the bronze tablet on the rear of the monument:

Killed

Co. B
Capt. Clark S. Simonds
Private John Campbell
” ” Daniel Carpenter

Co. C
Capt. Richard Derby
Private Zadoc Batterson
” ” Hiram A. Chambers
” ” John Frazer
” ” Charles E. Holbrook
” ” John P. Larkin Co. I
” ” George W.B. Sawyer

Co. D
Private Leander J. Owens
” William S. Sholes
” Charles H. Styles
” George H. Thompson

Co. E
Sergt. Amos H. Shumway
Private John H. Curran
” James H. Davis
” Alexander Thompson
” Conrad M. Tower
” Charles H. Wheelock

Co. F
Sergt. Elisha F. Johnson
Corp’l William L. Blood
” Joseph G. Fretts
” John W. Heath
Private Henry R. Bliss
” Shepard Brown
” Benjamin Davis
” John H. Hillman
” Alfred L. Russell
” James E. Sargent
” Justus G. Wellington

Co. G
Private Arthur J. Andrews
” Asa T. Bryant
” Harrison J. Clisbee
” Edward S. Johnson
” Michael Dugan
” Orin L. Davis
” Benjamin R. Elliott
” Charles J. Merriam

Co. H
Sergt. James B. Fletcher

Corpl. Henry A. Collar
Private Andrew Addision
” Henry W. Ainsworth
” O. W. Batchelder
” Patrick Finnegan
” Isaac E. Marshall
” George N. Smith
” Christopher Young

Co. I
1st Lieut. Frank S. Corbin

Co. D
Private Henry L. Amidon
” Lucis H. Briggs
” George Butler
” William S. Chapman
” Charles G. Foster
” Abram Sargent
” George R. Stone
” Mose Woo

Co. K
1st Sergt. Thomas Fernald
Private Adam N. Baker
” E.R. Buffum
‘ Thomas Kelley
” James Shay
” Joseph T. Smith
” John L. Starrett

Andrew Sharpshooters, 1st Co.
Captain John Saunders
Lieut. William Berry
Sergt. John Q. Adams
” George Whittemore
Corpl. Richard A. Van Mall
Private Edwin T. Hills
” Joseph S. Ingalls
” Marcus M. Parmenter
” Warren Snow
” Martin V. Strong

Died of Wounds
Co. A
Corpl Franklin Garner Oct. 6, 1862

Co. B
Private George Adams Oct. 7, 1862

Co. C
Sergt. Joseph P. Johnson Oct. 14, 1862
Private Harlow D. Getchell Oct. 14, 1862
” Thomas Hastings Sept. 20, 1862
” Waldo B. Maynard Sept. 24, 1862
” Robert R. Moses Oct. 5, 1862
” Charles E. Warren Oct. 2, 1862
” Leonard M. Towsley Sept. 27, 1862

Co. D
Corpl. E.D. Jordan Sept. 26, 1862
Private Darney Cooney Sept. 25, 1862
” Silas D. Marsh Sept. 22, 1862
” Francis H. Noye’s Sept. 20, 1862
” Melville Walker Sept. 29, 1862

Co. E
Private Alfred W. Davis Sept. 22, 1862
” Edwin E. Rindge Oct. 21, 1862

Co. F
Corpl William L. Adams Oct. 10, 1862
Private William H. Clark Oct. 1, 1862
” Albert W. Livermore Jan. 18, 1863
” Charles Perry Sept. 27, 1862
” William E. Vaneaver Nov. 1, 1862

Co. G
1st Lieut. Thomas J. Spurr Sept. 27, 1862
Sergt. Jonathan P. Stow Oct. 1, 1862
Private George Burns Nov. 15, 1862
” Francis H. Marble Nov. 26, 1862
” James Hughes Sept. 28, 1862
” Willie E. Morse Dec. 20, 1862
” Alfred Snow Oct. 18, 1862
” Charles L. Mitchell Oct. 24, 1862

Co. H
Private Samuel Emerson Sept. 26, 1862
” Franklin L. Hayden Sept. 27, 1862
” Charles D. Smith Sept. 27, 1862
” Simon Sullivan Oct. 21, 1862

Co. I
Sergt. Edwin L. Parmenter Oct. 15, 1862
Private Henry Butler Nov. 14, 1862
” Edward L. Day Sept. 20, 1862
” Henry Hathaway Sept. 20, 1862
” Thomas P. Munyan Oct. 17, 1862
” Godfried Reideman Sept. 30, 1862
” Alfred Tourtellotte Oct. 19, 1862

Co. K
Private David Rodgers Dec. 27, 1862
” Francis F. Young Nov. 7, 1862

Andrews Sharpshooters
1st Co. Private Samuel D. Abbott Sept. 20, 1862

See more on the history of the 15th Massachusetts Volunteer Infantry Regiment in the Civil War

Monument to the 15th Massachusetts Volunteer Infantry Regiment on the Antietam battlefield