This Military Service Page was created/owned by
Kent Weekly (SS/DSV) (DBF), EMCS
to remember
Deyo, Morton Lyndholm, VADM USN(Ret).
If you knew or served with this Sailor and have additional information or photos to support this Page, please leave a message for the Page Administrator(s) HERE.
Contact Info
Home Town Poughkeepsie, NY
Last Address Portsmouth, NH
Date of Passing Nov 10, 1973
Location of Interment U.S. Naval Academy Cemetery and Columbarium (VLM) - Annapolis, Maryland
Deyo served in both the Atlantic and Pacific Fleets during WWII. In the Atlantic, he commanded the destroyers which provided the first American escort assistance to allied convoys to England just prior to the Japanese attack on Pearl Harbor. He later commanded naval gunfire support at Utah Beach in the Normandy invasion, Task Force 129 at the Bombardment of Cherbourg, as well as during the invasion of Southern France.
When transferred to the Pacific, Rear Admiral Deyo assumed command of Cruiser Division 13 (CruDiv 13). He commanded gunfire and covering forces for the assault and occupation of Battle of Okinawa. During the battle, he was the last naval commander to form a battle line with battleships as they prepared to intercept the Japanese battleship Yamato. At the war's end, he accepted the surrender of Japanese forces at Sasebo, Kyushu and directed the Allied Occupation of Western Japan.
Other Comments:
Name of Award
Navy Distinguished Service Medal
Year Awarded
1945
Details behind Award:
Awarded for actions during the World War II
"The President of the United States of America takes pleasure in presenting the Navy Distinguished Service Medal to Rear Admiral Morton Lyndholm Deyo (NSN: 0-7760), United States Navy, for exceptionally meritorious and distinguished service in a position of great responsibility to the Government of the United States, as Commander of the Gunfire and Covering Force during the amphibious assault against Japanese-held Okinawa Gunto and the subsequent conquest of this strategic enemy island, from 24 March to 4 May 1945.
...
The Force under Rear Admiral Deyo's command delivered effective bombardment to cover the successful amphibious landing executed by our troops and subsequently, provided gunfire support of the land campaign, at the same time fighting fiercely against repeated attacks by aircraft and suicide surface craft. Although his flagship was hit by an enemy suicide plane during one action, Rear Admiral Deyo synchronized the units of his force to destroy enemy gun emplacements and strongpoints, disperse troop concentrations, harass hostile counterattacks and support attacks by our troops. Continuing these operations without interruption, the Gunfire and Covering Force under his direction destroyed a number of Japanese planes and frustrated all attempts launched by the enemy to attack our transports with suicide boats.
...
By his courage, leadership, judgment and unwavering devotion to duty, Rear Admiral Deyo contributed to the success of this major operation and upheld the highest traditions of the United States Naval Service." General Orders: Commander, Amphibious Forces Pacific: Serial 1570 (September 7, 1945) Action Date: March 24 - May 4, 1945 Service: Navy Rank: Rear Admiral Company: Commander Division: Naval Gunfire and Covering Force
Normandy Campaign (1944)/Operation Overlord
From Month/Year
June / 1944
To Month/Year
June / 1944
Description The Normandy landings (codenamed Operation Neptune) were the landing operations on 6 June 1944 (termed D-Day) of the Allied invasion of Normandy in Operation Overlord during World War II. The largest seaborne invasion in history, the operation began the invasion of German-occupied western Europe, led to the restoration of the French Republic, and contributed to an Allied victory in the war.
Planning for the operation began in 1943. In the months leading up to the invasion, the Allies conducted a substantial military deception, codenamed Operation Bodyguard, to mislead the Germans as to the date and location of the main Allied landings. The weather on D-Day was far from ideal, but postponing would have meant a delay of at least two weeks, as the invasion planners had requirements for the phase of the moon, the tides, and the time of day that meant only a few days in each month were deemed suitable. Hitler placed German Field Marshal Erwin Rommel in command of German forces and of developing fortifications along the Atlantic Wall in anticipation of an Allied invasion.
The amphibious landings were preceded by extensive aerial and naval bombardment and an airborne assault—the landing of 24,000 British, US, and Canadian airborne troops shortly after midnight. Allied infantry and armoured divisions began landing on the coast of France starting at 06:30. The target 50-mile (80 km) stretch of the Normandy coast was divided into five sectors: Utah, Omaha, Gold, Juno, and Sword Beach. Strong winds blew the landing craft east of their intended positions, particularly at Utah and Omaha. The men landed under heavy fire from gun emplacements overlooking the beaches, and the shore was mined and covered with obstacles such as wooden stakes, metal tripods, and barbed wire, making the work of the beach clearing teams difficult and dangerous. Casualties were heaviest at Omaha, with its high cliffs. At Gold, Juno, and Sword, several fortified towns were cleared in house-to-house fighting, and two major gun emplacements at Gold were disabled using specialised tanks.
The Allies failed to achieve all of their goals on the first day. Carentan, St. Lô, and Bayeux remained in German hands, and Caen, a major objective, was not captured until 21 July. Only two of the beaches (Juno and Gold) were linked on the first day, and all five bridgeheads were not connected until 12 June. However, the operation gained a foothold that the Allies gradually expanded over the coming months. German casualties on D-Day were around 1,000 men. Allied casualties were at least 10,000, with 4,414 confirmed dead. Museums, memorials, and war cemeteries in the area host many visitors each year.
Operation Overlord was the code name for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied western Europe during World War II. The operation commenced on 6 June 1944 with the Normandy landings (Operation Neptune, commonly known as D-Day). A 1,200-plane airborne assault preceded an amphibious assault involving more than 5,000 vessels. Nearly 160,000 troops crossed the English Channel on 6 June, and more than three million allied troops were in France by the end of August.
The decision to undertake a cross-channel invasion in 1944 was taken at the Trident Conference in Washington in May 1943. General Dwight D. Eisenhower was appointed commander of Supreme Headquarters Allied Expeditionary Force (SHAEF), and General Bernard Montgomery was named as commander of the 21st Army Group, which comprised all the land forces involved in the invasion. The Normandy coast was chosen as the site of the invasion, with the Americans assigned to land at Utah and Omaha Beaches, the British at Sword and Gold Beaches, and Canadians at Juno Beach. To meet the conditions expected on the Normandy beachhead, special technology was developed, including two artificial ports called Mulberry harbours and an array of specialised tanks nicknamed Hobart's Funnies. In the months leading up to the invasion, the Allies conducted a substantial military deception, Operation Bodyguard, using both electronic and visual misinformation. This misled the Germans as to the date and location of the main Allied landings. Hitler placed German Field Marshal Erwin Rommel in charge of developing fortifications all along the Atlantic Wall in anticipation of an invasion.
The Allies failed to reach their goals for the first day, but gained a tenuous foothold that they gradually expanded as they captured the port at Cherbourg on 26 June and the city of Caen on 21 July. A failed counterattack by German forces on 8 August led to 50,000 soldiers of the German 7th Army being trapped in the Falaise pocket. The Allies launched an invasion of southern France (Operation Dragoon) on 15 August, and the Liberation of Paris followed on 25 August. German forces retreated across the Seine on 30 August 1944, marking the close of Operation Overlord.
My Participation in This Battle or Operation
From Month/Year
June / 1944
To Month/Year
June / 1944
Last Updated: Mar 16, 2020
Personal Memories
Memories PART 3 GENERAL BOMBARDMENT PLANS A. Bombardment of Cherbourg1 32. The initial plan provided bombardment at 28,000 yards, to neutralize or destroy long range batteries, after which, ships were to close in to a position roughly 14,000 yards north of Cherbourg. The long range bombardment was, however, cancelled shortly before the commencement of the operation. This was considered necessary by the U.S. Army Commanders to avoid any danger that U.S. troops, who were already close to Cherbourg defences, might advance into the firing zone. Bombarding ships, therefore, proceeded into close range position before opening fire. A congested situation developed at the southern end of the approach channel, where the Nevada, Quincy, Tuscaloosa, Glasgow and Enterprise were forced to reduce speed to keep clear of the minesweepers when the whole force was turning eight points, from the approach channel, into the fire support area.2 33. Support of the advance of the VIIth U.S. Army Corps up the Cotentin Peninsula, and of its capture of Cherbourg, was organized at the request of the Commanding General, 1st U.S. Army by CTF 122. A Bombarding Force (Task Force 129), was organized which on June 25, 1944, bombarded enemy batteries and shore defenses guarding the approaches to Cherbourg. Task Force 129 was under the Command of Rear-Admiral Deyo, USN, (CTF 129) flying his flag in the U.S.S. Tuscaloosa. Second in command was Rear-Admiral Bryant, USN, flying his flag in U.S.S. Texas. In addition to these two ships, the force comprised: U.S. Ships, Arkansas, Quincy, Nevada, Laffey, Barton, O'Brien, and H.M. Ships: Glasgow and Enterprise. The British 9th and 159th minesweeping flotillas and U.S. 7th M/S Squadron, provided minesweeping protection, and an anti-submarine screen to the force was provided by H.M. Ships, Onslow, Offa, Onslaught, Oribi, Melbreak and Brissenden.
