Final answer:
Casualty reports and next of kin notifications are filed on Page 13 of the enlisted service record, which is crucial for handling sensitive personnel information in the military.
Step-by-step explanation:
The question discusses the process of managing personnel records in a military context, specifically the U.S. Navy's Enlisted Service Record. In this record, casualty reports and notifications to next of kin are an important part of personnel administration, conveying the necessary and sensitive information concerning service members who have been injured, fallen ill, or killed in service.
To answer the student's question directly, casualty reports and next of kin notifications are filed on Page 13 of the enlisted service record, which is used to record emergency data. It's essential for these records to be meticulously maintained and updated regularly to ensure that the information is current and accurate, due to the critical nature of the information contained within them.