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Note: While this post focuses on U.S. Army records based on my research, similar types of records are available for other branches of service, including the Navy, Marine Corps, and Army Air Forces. The names of the records and where they are located may differ, but the overall research approach is often very similar.
I have been spending a great deal of time with the morning reports for my father in Company G, 393rd Infantry Regiment. Morning reports are one of the most valuable records available for World War II research. They provide a daily snapshot of a soldier’s status, tracking assignments, transfers, hospitalizations, and returns to duty.
But as useful as they are, morning reports have their limits.
If you have spent time working with them, you have probably noticed that what is not there can be just as important as what is. It was that realization that pushed me to take the next step in my research and start searching for the records that could fill in those missing pieces of my father’s story.
What Morning Reports Don’t Tell You
Morning reports are administrative records held by the National Archives and Records Administration. They were not created to tell a story. Because of that, they often leave out the very details researchers are hoping to find.
They typically do not include:
- Detailed accounts of combat
- Personal experiences or narratives
- Exact locations beyond general references
- The circumstances surrounding wounds or injuries
- The broader actions of the unit
In my own research on my father, Bruce Glover, I found morning report entries noting his status changes from August 1943 to February 1946, but this was not the full story of his World War II service. I could see when something happened, but not what happened. The reports documented movement and condition, but they did not explain the events unfolding around him.
That gap is where the next phase of research begins.
Because World War II military history research is so vast, I plan to break where to look next into sections in upcoming posts. This first section focuses on the types of records that help fill in those gaps, beginning with unit histories and then moving into After Action Reports.
Unit Histories
Unit histories provide the operational context that morning reports lack. They describe what the unit was doing, where they were located, and what they experienced over time.
While morning reports tell you when something happened to a soldier, unit histories begin to explain what was happening around them.
Unit histories are part of a specific record series at the National Archives titled Unit Histories, 1943–1967, located in Record Group 339, Records of U.S. Army Operational, Tactical, and Support Organizations (World War II and Thereafter). These records were created by the Department of Defense, Department of the Army, within the Adjutant General’s Office, Administrative Services Division, Departmental Records Branch.
This series contains compiled histories for Army units, often summarizing their movements, locations, and activities over time. Some include narratives, maps, and occasional photographs, depending on the unit and the time period.
After Action Reports
After Action Reports provide some of the most detailed accounts available for understanding what a unit experienced during specific operations.
These reports were created after combat actions and were intended to document what happened, how the operation unfolded, and what could be learned from it. Unlike morning reports, which focus on personnel status, After Action Reports focus on the mission itself.
They often include:
- Narrative summaries of combat operations
- Objectives and whether they were achieved
- Enemy activity and resistance encountered
- Casualty figures and equipment losses
- Lessons learned and recommendations
In some cases, these reports include maps, overlays, or supporting documents that help illustrate troop movements and positions during an engagement.
For researchers, After Action Reports can be especially valuable when trying to understand the circumstances surrounding events noted in morning reports, such as wounds, transfers, or sudden changes in status. They help answer the question that morning reports leave behind: what was happening at that moment?
After Action Reports are also held at the National Archives, most often in Record Group 407, Records of the Adjutant General’s Office, 1917–. For World War II research, they are commonly found in the series known as “World War II Operations Reports.” Some of these records have been digitized and can be searched in the National Archives Catalog, while others must be accessed in person at the National Archives in College Park, Maryland.
Because they are organized by unit, knowing your soldier’s division, regiment, or battalion is essential when searching for them. For my father’s service in Company G, 393rd Infantry Regiment, these reports offer the opportunity to better understand the combat operations his unit was involved in during the periods reflected in his morning reports.
Together, Unit Histories and After Action Reports provide a clearer picture of a unit’s wartime experience. When combined with the daily detail of morning reports, they allow researchers to move beyond dates and status changes and begin to reconstruct the lived experience of the soldiers themselves.
AI Disclosure
This post was created with the assistance of artificial intelligence (AI) tools.
While the research, interpretation, and writing reflect my own work, ChatGPT 5.2 was used to support the process in the following ways: suggesting titles, assisting with grammar, spelling, and proofreading, and helping create a visual research path image to illustrate the progression of sources.


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