USS Mayo

USS Mayo (DD-422) was a Benson-class destroyer in the United States Navy during World War II. She was named for Admiral Henry Thomas Mayo.

United States
Name: USS Mayo (DD-422)
Namesake: Admiral Henry Thomas Mayo
Laid down: 16 May 1938
Launched: 26 March 1940
Sponsored by: Mrs. C. G. Mayo, daughter-in-law of Admiral Mayo
Commissioned: 18 September 1940
Decommissioned: 18 March 1946
Refit: April–July 1944
Struck: 1 December 1971
Nickname(s): Mighty Mayo, Mayo Maru[1]
Honors and
2 battle stars, World War II
Fate: sold 8 May 1972
General characteristics
Class and type: Benson-class destroyer
Displacement: 1620 tons
Length: 374 ft 4 in (114.10 m)
Beam: 36 ft 1 in (11.00 m)
Draft: 11 ft 9 in (3.58 m)
Speed: 37.5 knots (69.5 km/h; 43.2 mph)
Complement: 191

Mayo was laid down 16 May 1938 by Bethlehem Shipbuilding Corporation, Fore River, Massachusetts; launched 26 March 1940; sponsored by Mrs. C. G. Mayo, daughter-in-law of Admiral Mayo; and commissioned 18 September 1940, Lieutenant C. D. Emory in command.

Service history

Mayo joined the expanding Neutrality Patrol after shakedown and escorted Marines to Iceland in July 1941 as they took protective custody of that key island. As President Franklin D. Roosevelt and British Prime Minister Winston Churchill agreed to the Atlantic Charter during the second week in August, Mayo guarded their meeting by patrolling off NS Argentia, Newfoundland.

The formal entrance of the United States into World War II lengthened her convoy assignment beyond the western Atlantic Ocean. Escort of slow merchant convoys out of Boston gave way in summer 1942 to duty with fast troop transports out of New York City. U-boats and bad weather were not the only dangers to be encountered. When Wakefield caught fire 3 September, Mayo swiftly moved alongside the burning ship and removed 247 survivors. With the invasion of North Africa, Mayo appeared at Casablanca, Morocco, 12 November, 4 days after D‑Day, to protect the landing of reinforcements. A retraining period at the end of the year in Casco Bay, Maine, temporarily interrupted convoy assignments.

With DesRon 7, Mayo joined the 8th Fleet in the Mediterranean Sea in August 1943. She gave fire and antiaircraft protection to the beachhead at Salerno, Italy, 8 September and again 22 to 24 January 1944 to the assault beaches at Anzio. At 20:01 on the 24th she hit a mine and the explosion killed seven and wounded 25 of her crew while almost breaking her in two. Despite a gaping hole at the waterline, starboard, she survived a tow back to Naples for a temporary patch, and 3 March began the long tow back to the States. Pulled into New York Navy Yard 5 April, Mayo required 4 months for repairs.

Mayo made a voyage to Trinidad and four to Europe before Germany surrendered. DesRon 7 sortied from New York 5 May 1945 for the western Pacific, and at Pearl Harbor joined fast carrier TG 12.4. Planes from this group struck Wake Island as a training gesture 20 June as the ships sailed on westward. Upon reaching Ulithi, Mayo began a series of escort missions to Okinawa. On 24 August she got underway escorting occupation troops which were landed on Honshū 2 September. She shepherded additional troops from the Philippines and Okinawa before sailing from Yokohama 5 November for San Diego, California and Charleston, South Carolina, arriving 7 December.

She decommissioned 18 March 1946 and went into reserve at Orange, Texas. She was stricken from the Naval Vessel Register on 1 December 1971, sold 8 May 1972 and broken up for scrap.

As of 2005, no other ship in the United States Navy has been named Mayo.

Convoys escorted

Convoy Escort Group Dates Notes
task force 19 1–7 July 1941[2] occupation of Iceland prior to US declaration of war
HX 152 30 Sept-9 Oct 1941[3] from Newfoundland to Iceland prior to US declaration of war
ON 26 20-29 Oct 1941[4] from Iceland to Newfoundland prior to US declaration of war
HX 160 17-25 Nov 1941[3] from Newfoundland to Iceland prior to US declaration of war
ON 41 4-14 Dec 1941[4] from Iceland to Newfoundland; war declared while escorting convoy
HX 167 29 Dec 1941-7 Jan 1942[3] from Newfoundland to Iceland
ON 55 15-16 Jan 1942[4] from Iceland to Newfoundland
HX 175 MOEF group A4 15-25 Feb 1942[3] from Newfoundland to Northern Ireland
ON 73 MOEF group A4 6–16 March 1942[4] from Northern Ireland to Newfoundland
HX 182 MOEF group A4 30 March-7 April 1942[3] from Newfoundland to Northern Ireland
ON 86 MOEF group A4 14–26 April 1942[4] from Northern Ireland to Newfoundland
AT 18 6-17 Aug 1942[5] troopships from New York City to Firth of Clyde


Mayo received two battle stars for World War II service.


  1. "USS Mayo DD 422". Archived from the original on 2012-09-20. Retrieved 2008-02-19.
  2. Morison, Samuel Eliot (1975). The Battle of the Atlantic September 1939-May 1943. Little, Brown and Company. pp. 74–79.
  3. "HX convoys". Andrew Hague Convoy Database. Retrieved 2011-06-19.
  4. "ON convoys". Andrew Hague Convoy Database. Retrieved 2011-06-19.
  5. "AT convoys". Andrew Hague Convoy Database. Retrieved 2011-06-20.


  • Davis, Rick E. (2008). "The Unique Armament and Configuration of Mayo (DD-422) and Plunkett (DD-431)". Warship International. XLV (4): 317–328. ISSN 0043-0374.

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.

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