Horace Costner was killed in action near Siersdorf, Germany.
Horace C. Costner
- Rank: Private First Class
- Born: 7 June 1924
- Died: 21 November 1944
- County: Blount
- Hometown: Not listed
- Service Branch: Army/Army Air Forces
- Division/Assignment: 175th Infantry Regiment, 29th Infantry Division
- Theater: North Africa, Europe
- Conflict: World War II
- Battles: Not listed
- Awards: Purple Heart
- Burial/Memorial Location: Mount Moriah Cemetery, Rockford, TN
- Location In Memorial: Pillar VI, Bottom Panel
- Sponsored by: Contact us to sponsor Horace C. Costner