Dear Mr. Bennett,
Thank you for posting your request on History Hub!
According to the Coast Artillery Organizational History, 1917-1950 Part I, Coast Artillery Regiments 1-196, the 76th Coast Artillery Regiment Anti Aircraft (AA) (Colored) departed San Francisco and arrived at Espiritu Santo, New Hebrides, 9-2-42. Manned AA defenses until inactivated 11-1-43. Headquarters & Headquarters Battery (HHB) redesignated HHB 76th AAA Gp; 1st Bn redesignated 76th AA Artillery (Gun) Bn; 2nd Bn redesignated 933rd AAA (AW) Bn; 3rd Bn disbanded and personnel reassigned.
We searched the National Archives Catalog and located the World War II Operations Reports, 1940-1948 in the Records of the Adjutant General's Office, 1917-1985 (Record Group 407) that may include records of the76th Coast Artillery Regiment, the 76th Anti-Aircraft Artillery Group, the 76th Anti-Aircraft Artillery (Gun) Battalion, and the 933rd Anti-Aircraft Artillery (AW) Battalion for WWII. For access to these records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at email@example.com. We were unable to locate specific records of the 76th Coast Artillery Corps (AA) (Colored).
Copies of most of the monthly rosters from November 1912 - 1943 for Army units are in the custody of the National Archives at St. Louis, MO. For information about the non-digitized records, please contact the National Archives at St. Louis (RL-SL) via email at firstname.lastname@example.org. Please note that the World War I rosters have been digitized and are available on FamilySearch at https://www.familysearch.org/search/catalog/3378445?availability=Family%20History%20Library
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 from RDT2 and RL-SL. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your family research!