ERECTED BY THE COMMONWEALTH OF MASSACHUSETTS TO MARK THE POSITION HELD BY HER TROOPS AT THE BATTLE OF ANTIETAM

MAJOR GENERAL JOSEPH K.F. MANSFIELD COMMANDING THE 12TH CORPS ARMY OF THE POTOMAC WAS MORTALLY WOUNDED NEAR THIS SPOT SEPTEMBER 17TH, 1862 ABOUT 7:35AM WHILE DEPLOYING HIS CORPS IN ACTION

MAJOR GENERAL JOSEPH K.F. MANSFIELD U.S.A MORTALLY WOUNDED 38 YARDS N 76'W

MAJOR GENERAL ISRAEL B. RICHARDSON U.S.A. MORTALLY WOUNDED 45 YARDS N. 32'E

HERE FELL IN THE FOREMOST OF THE ADVANCE OF SUMNER'S SECOND CORPS JOHN LEMUEL STETSON OF PLATTABUR NEW YORK, LIEUT.COL. OF THE 59TH NEW YORK 1862-VOLUNTEERS-1919