The monument to the 64th New York Volunteers is south of Gettysburg on Brooke Avenue in the Rose Woods. (39.79499° N, 77.24698° W; Google map; Tour map: Brooke Avenue) It was dedicated in 1890 by the State of New York.
The 64th New York was commanded at the Battle of Gettysburg by Colonel David G. Bingham. He was wounded on July 2nd, and Major Leman W. Bradley took command of the regiment.
A monument to Captain Henry Fuller is about 175 yards east of the regimental monument near Rose Run. Captain Fuller was killed at Gettysburg commanding Company F of the 64th New York.
The 64th New York brought 237 men to the field, losing 15 killed, 64 wounded and 19 missing.
From the front of the monument:
64th N.Y. Infantry.
4th Brigade 1st Division Second Corps
July 2, 1863
From the rear:
Killed, Officers 4, Enlisted men 11, total 15.
Wounded, Officers 7, Enlisted men 57, total 64.
Missing, Enlisted men 19, Total 98.
See more on the 64th New York Volunteer Infantry Regiment in the Civil War