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Hammann-Costin WWI Medal of Honor Memorial

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N Howard Street & W Preston Street (Street View)

GPS: 39° 18′ 16.45″ N 76° 37′ 15.49″ W


This monument is dedicated to two Maryland winners of the Congressional Medal of Honor during service in World War I: Charles Hazeltine Hammann, an ensign in the Air Service of the US Navy, and Henry Gilbert Costin, a private in the Army.

During an aerial engagement off the coast of Italy on the 21st of August in 1918, Ensign Hammann landed his seaplane to rescue a downed pilot, Ensign George M. Ludlow, though his plane was not designed to carry the double load and there was imminent danger of attack by Austrian planes. The pair flew to safety. Two ships were named the USS Hammann in his honor and served during WWII.

Private Costin, a member of Company H, 115th Infantry, was slain in battle during the Meuse-Argonne Offensive near Bois-de-Consenvoye. His platoon was being held up by an enemy machine gun entrenchment. Costin was first to volunteer to storm the nest against heavy artillery, mortar and machine gun fire. He died shortly after the successful attack which resulted in the capture of over 100 enemy soldiers and several machine guns.


This monument is located in Congressional Medal of Honor Park, located at Preston Street and Park Avenue, where it loops around to intersect with Howard Street. At the top of the memorial is a sculpture of a flame and on either side rests a mortar.



Written by monumentcity

April 4th, 2009 at 3:36 pm