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Ship Name and Designation History

This section lists the names and designations that the ship had during its lifetime. The list is in chronological order.

    Admiral W. S. Benson Class Transport
    Keel Laid 21 February 1944 - Launched 26 November 1944

    Commissioned 24 April 1945 - Decommissioned 26 May 1946

    Struck from the Naval Register 9 June 1946

    Commissioned 1946 - Decommissioned 1950

    Reacquired by the US Navy 1 March 1950 and Place in Service
    Placed out of Service 5 June 1958
    Reacquired and Placed in Service 14 August 1965
    Placed out of Service early 1968

    Transferred to MARAD 16 April 1970
    Struck from the Naval Vessel Register, 15 January 1981
    Transferred to MARAD 23 December 1994 for disposal
    Scrapping contract awarded 27 September 2004
    Removed from Reserve Fleet 4 January 2005 and scrapped

Naval Covers

This section lists active links to the pages displaying covers associated with the ship. There should be a separate set of pages for each name of the ship (for example, Bushnell AG-32 / Sumner AGS-5 are different names for the same ship so there should be one set of pages for Bushnell and one set for Sumner). Covers should be presented in chronological order (or as best as can be determined).

Since a ship may have many covers, they may be split among many pages so it doesn't take forever for the pages to load. Each page link should be accompanied by a date range for covers on that page.

  1. USNS General Nelson M. Walker T-AP-125 Covers Page 1     (DATE RANGE)



This section lists examples of the postmarks used by the ship. There should be a separate set of postmarks for each name and/or commissioning period. Within each set, the postmarks should be listed in order of their classification type. If more than one postmark has the same classification, then they should be further sorted by date of earliest known usage.

A postmark should not be included unless accompanied by a close-up image and/or an image of a cover showing that postmark. Date ranges MUST be based ONLY ON COVERS IN THE MUSEUM and are expected to change as more covers are added.
>>> If you have a better example for any of the postmarks, please feel free to replace the existing example.


Postmark Type
Killer Bar Text

Thumbnail Link
Postmark Image
Thumbnail Link
Cover Image


Machine Postmark

Alameda, CA


The ship had no postal facilities.


Other Information

USS ADMIRAL H. T. MAYO / GENERAL NELSON M. WALKER earned the American Campaign Medal, the Europe-Africa-Middle East Campaign Medal, the Asiatic-Pacific Campaign Medal, the World War II Victory Medal, the National Defense Service Medal (2 awards), the Korean Service Medal w/ 3 Campaign stars, the Vietnam Service Medal w/ 3 Campaign stars, the United Nations Service Medal, the Republic of Vietnam Campaign Medal and the Republic of Korea War Service Medal during her Naval career.

NAMESAKE - Admiral Henry Thomas Mayo, USN (8 December 1856 – 23 February 1937)
        Mayo graduated from the United States Naval Academy in 1876 and he experienced a variety of naval duties including coastal survey. During the Spanish–American War he served in the gunboat USS Bennington PG-4 off the west coast of North America.
         About 1909 he was in command of the cruiser USS Albany as she cruised in Central American waters protecting United States citizens and interests as part of the Special Service Squadron.
         Appointed Rear Admiral in 1913, he commanded the naval squadron involved in the Tampico incident of 9 April 1914. His demands for vindication of national honor further accentuated the tense relations with Mexico.
         Promoted to Vice Admiral in June 1915, as the new Commander in Chief, Atlantic Fleet, he received the rank of Admiral 19 June 1916. For his organization and support of World War I U.S. Naval Forces both in American and European waters, he was awarded the Navy Distinguished Service Medal and various foreign decorations. He evidenced foresight in urging the postwar development of fleet aviation.
         Admiral Mayo retired 28 February 1921, and, for four years, served as Governor of the Philadelphia Naval Home. He retained his commission as an Admiral by a 1930 Act of Congress.

Two ships of the US Navy have been named in his honor - USS Admiral H. T. Mayo AP-125 and USS Mayo DD-422

The ships sponsor was Mrs. George Mayo, wife of Lieut. Colonel George Mayo, who is a son of Admiral Mayo.

NAMESAKE - Brigadier General Nelson Macy Walker, USA (27 September 1891 - 10 July 1944)
        Walker attended Officers Training Camp, Plattsburg, N.Y., and was commissioned Second Lieutenant in the Infantry Reserve 15 August 1917. He went to France with the 47th Infantry Regiment in April 1918 and participated in the Aisne-Marne, St. Mihiel, and Meuse-Argonne Offensives. He was wounded in action 5 July 1918. He continued action with the American forces in Germany until July 1919 when he returned to the United States. During the next 18 years he was stationed at various Army posts in the United States. From July 1937 until August 1938, he served with the 15th Infantry in Tientsin, China. After the entry of the United States into World War II, he was assigned to Headquarters, Army Ground Forces, in Washington, D.C. Promoted Brigadier General 11 September 1942, he became Assistant Division Commander, 8th Infantry Division, in November 1943. He was killed in France 10 July 1944 during the invasion of Western Europe.



If you have images or information to add to this page, then either contact the Curator or edit this page yourself and add it. See Editing Ship Pages for detailed information on editing this page.


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