It's important to note that:
* Privacy: Family history is personal and not always widely shared.
* Limited Information: There are no official sources that specifically detail the military service of every individual.
* Focus on Tom Hanks: The vast majority of information about the Hanks family centers on Tom Hanks' career and personal life.
If you're interested in learning more about Amos Hanks, you might consider researching family history resources or contacting a genealogist.