b. 16/03/1892 Baltimore, Maryland. d. 14/06/1919 Hampton, Virginia.
DATE OF MOH ACTION: 21/08/1918 Adriatic Sea.
Born in Baltimore, Maryland, Hammann attended Baltimore Polytechnic Institute, and joined the Naval Reserve in October 1917. He was awarded the Medal of Honor, when, as a pilot of a Macchi M.5 seaplane on August 21, 1918, off the Austro-Hungarian coast, he dived down and landed next to a downed fellow pilot, George M. Ludlow, and brought him aboard, and although his plane was not designed for the double load, brought him to safety amid constant danger of attack by Austrian planes. An enlisted pilot at the time, he was commissioned as an ensign in October 1918.
Hammann was killed while on active duty at Langley Field, Virginia, June 14, 1919.
For extraordinary heroism as a pilot of a seaplane on 21 August 1918, when with three other planes Ens. Hammann took part in a patrol and attacked a superior force of enemy land planes. In the course of the engagement which followed, the plane of Ens. George M. Ludlow was shot down and fell in the water five miles off Pola. Ens. Hammann immediately dived down and landed on the water close alongside the disabled machine, where he took Ludlow on board. Although his machine was not designed for the double load to which it was subjected, and although there was danger of attack by Austrian planes, he made his way to Porto Corsini.
BURIAL LOCATION: OAK LAWN CEMETERY, EASTPOINT, MARYLAND.
LOCATION OF MEDAL: FAMILY.