U.S. Civil War - U.S. Navy
- Rank: Quarter Gunner
- Conflict/Era: U.S. Civil War
- Military Service Branch: U.S. Navy
- Medal of Honor Action Date: October 31, 1864
- Medal of Honor Action Place: Plymouth, North Carolina, USA
Served as quarter gunner on board the U.S.S. Tacony during the taking of Plymouth, N.C., 31 October 1864. Carrying out his duties faithfully during the capture of Plymouth, Tallentine distinguished himself by a display of coolness when he participated in landing and spiking a 9-inch gun while under devastating fire from enemy musketry. Tallentine later gave his life while courageously engaged in storming Fort Fisher, 15 January 1865.