Dear Mr. Solomon,
Thank you for posting your request on History Hub!
According to the Department of the Navy records management regulations, only the deck logs of major combatant and support ships are considered permanent records and eventually accessioned into the custody of the National Archives. Other types of logs (engineer, engine room, quarter deck, sick bay or sick call, radio, and quartermaster) are deemed to be temporary records and destroyed by the Navy after initial administrative use.
We searched the National Archives Catalog and located the Logbooks of U.S. Navy Ships and Stations, 1941 - 1983 in the Records of the Bureau of Naval Personnel (Record Group 24) that include the deck logs of the USS Estes (AGC-12) for 1968. This deck log has been digitized and can be viewed online using the Catalog. Please note that the Catalog does not always list logs in chronological order. When viewing logs for each month, you may wish to click on the red PDF icon under the “Documents” heading. This will allow you to view the entire month’s logs as a single file. Once you have done so, you may use the blue download button to download the PDF. Due to the size of the files involved, it may take a little while for them to load in full. Please be patient. If you have any problems accessing these files, please email Catalog@nara.gov.
We hope this is helpful. Best of luck with your research!