"Name: David Clark
Birth Date: May 1824
Birth Place: Ireland
Father: David Clark
Mother: Ann Marshall
Residence Place: Ithaca, New York
Enlistment Date: 16 Aug 1862
Enlistment Location: Ithaca, Tompkins, New York
Regiment: 137th Infantry
Company: D
Rank: Private
Race: White
Marital Status: Married
Profession: Moulder
Notes: Killed at the Battle of Gettysburg, Pa, July 3, 1863. Remains buried at same place."

David Clark in the New York, U.S., Town Clerks' Registers of Men Who Served in the Civil War, ca 1861-1865, Ancestry.com