I found this link to some pictures of the 388th ENG Pipeline Company.
Thanks for the response! This Flicker account was actually one of the few things I found online about the 388th ENG Pipeline company. My grandpa's featured in a few of the photos. When I get the chance I'll compile and post the pictures I have of him from his time in Korea.
Dear Mr. Mattox,
Thank you for posting your request on History Hub!
We suggest that you request a copy of his Official Military Personnel File (OMPF). OMPFs and individual medical reports for soldiers of the U.S. Army who served during the Korean War and who separated from the service 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. If there is any information requested by the form that you do not know, you may omit it or provide estimates (such as for dates), but the more information you provide, the easier it will be to locate the correct file if it survived the fire. For more information see Official Military Personnel Files (OMPF), Archival Records Requests.
Copies of most of the monthly rosters from 1947 - 1959 and morning reports from November 1, 1912 to 1959 for Army units are in the custody of the National Archives at St. Louis (RL-SL). For more information about these records, please contact RL-SL via email at email@example.com.
We searched the National Archives Catalog and located a series titled Unit Histories, 1943 - 1967 in the Records of U.S. Army Operational, Tactical, and Support Organizations (World War II and Thereafter) (Record Group 338) that includes 3 files relating to the 388th Engineer Pipeline Company during the 1950s. We also located Command Reports, 1949 - 1954 in the Records of the Adjutant General's Office (Record Group 407) that includes the file ENCO-388 - 388th Engineer Pipeline Company: Command Report, 04/1953. For more information about these non-digitized records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org
Due to the continued impact of COVID-19, you may experience a delay in receiving an initial acknowledgment as well as a substantive response to your reference request from RL-SL and RDT2. We apologize for this inconvenience and appreciate your understanding and patience as we balance mission-critical work and the safety of our staff during the pandemic. Please check NARA’s web page about COVID-19 updates for the latest information. Also, NPRC will continue servicing requests ONLY associated with medical treatments, burials, homeless veterans seeking admittance to a homeless shelter, and those involving the VA Home Loan program. If your request is urgent, please see Emergency Requests and Deadlines. Please refrain from submitting non-emergency requests such as replacement medals, administrative corrections, or records research until NPRC returns to pre-COVID staffing levels. Please check archives.gov/veterans for updates to the NPRC operating hours and status. We apologize for this inconvenience and appreciate your understanding and patience.
The U.S. Army Heritage & Education Center, 950 Soldiers Drive, Carlisle, PA 17013, has a large collection of published unit histories. Additionally, the U.S. Army Engineer Museum at Fort Leonard Wood, MO and the History Office of the U.S. Army Corps of Engineers at Ft. Bevoir, Virginia, may be able to assist you with unit history research.
We hope this is helpful. Best of luck with your family research!