How old was Chief Armand Roussel when he was killed in action?

The correct response indicates that the confirmed age of Chief Armand Roussel when he was killed in action is not provided. This suggests that, despite potential speculation or assumptions about his age based on other available information, there has not been definitive documentation that clearly states his age at the time of his death. This scenario is common in historical records where certain personal details may not be consistently recorded or may have been lost over time, leading to ambiguity about specifics such as age. This option emphasizes the importance of relying on confirmed data and understanding that some historical facts may remain vague or unverified.