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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.

    Crater Class Cargo Ship
    Keel Laid as "WILLIAM G. McADOO" - Launched December 20 1942
    Acquired by the US Navy October 5 1943

    Commissioned October 20 1943

    Converted to a Grumium Class Aviation Supply Issue Ship
    Reclassified Miscellaneous Unclassified (IX) June 20 1944

    Redesignated (AVS) May 25 1945 - Decommissioned December 20 1945

    Struck from the Naval Register, (date unknown)
    Transferred to the Maritime Commission December 27 1945
    Sold as "SS WILLIAM G. McADOO" in April 1970.

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. Covers Page 1     (1945)



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

Date From
Date To
Thumbnail Link To
Postmark Image
Thumbnail Link To
Cover Image


Locy Type




Locy Type


Last Day of Postal Service, Cachet by Tazewell G. Nicholson


Locy Type
LDPS 9efu


Last Day of Postal Service, Cachet by Tazewell G. Nicholson


Other Information

USS GRUMIUM received one battle star for World War II service.

NAMESAKE - A star.



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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