Dear Angela Chiavetta,
Thank you for contacting History Hub.
The 348th Infantry Division was part of the 87th Infantry Division. During the First World War they were sent overseas but did not see any military action, and were apparently utilized as laborers until going back home and being discharged in early 1919. Most of the web presence of the 87th Infantry Division pertains to their World War II experience.
Here is a page with a photo of a plaque and some information pertaining to the 87th Infantry, with some more information: https://www.cityofgroveok.gov/building/page/united-states-army-87th-infantry-division-golden-acorn
You can request a copy of William Ippolito’s Official Military Personnel File (OMPF), if you have not done so already. OMPFs and individual medical reports for enlisted men of the U.S. Army who were separated from the service after October 1912 and before 1959 are in the custody of NARA's National Personnel Records Center (NPRC) in St. Louis. In many cases where personnel records were destroyed in the 1973 fire, proof of service can be provided from other records such as morning reports, payrolls, and military orders, and a certificate of military service will be issued. Please complete a GSA Standard Form 180 and mail it to NARA's National Personnel Records Center, (Military Personnel Records), 1 Archives Drive, St. Louis, MO 63138-1002. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
This may be some duplication of the above links, but here is a page on Requesting Veterans’ Service Records from the National Archives:
The ship that Ippolito returned on was the “Ohioan”. According to the Dictionary of American Naval Fighting Ships, https://babel.hathitrust.org/cgi/pt?id=mdp.39015081726344&view=1up&seq=3&q1=Ohioan
the “Ohioan” was decommissioned in September 1919, and returned to the American-Hawaiian Steamship Company in October 1919. The “Ohioan” was shipwrecked off the Golden Gate outside of San Francisco, CA in 1936. Here are some interesting photos of the wreck.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your research.