Source:
http://www.army.mil/cmh/Default.htmNote: This is not my ancestry. I have NO additional information. I am just passing along information that may be useful.
HUIDEKOPER, HENRY S.
Rank and organization: Lieutenant Colonel, 150th Pennsylvania Infantry. Place and date: At Gettysburg, Pa., 1 July 1863. Entered service at: Philadelphia, Pa. Born: 17 July 1839, Meadville, Pa. Date of issue: 27 May 1905. Citation: While engaged in repelling an attack of the enemy, received a severe wound of the right arm, but instead of retiring remained at the front in command of the regiment.