"Pillbox hats" being worn by US soldiers are considered post Civil War.

major bill

Brev. Brig. Gen'l
Forum Host
Aug 25, 2012
I understand that "pillbox hats" being worn by US soldiers is a post Civil War trend. So what about other counties? Pillbox hats were very popular with the British soldiers soon after the Civil War but were any non American soldiers wearing pillbox hats before or during the Civil War? I do not believe I have ever seen a US Civil War soldier wearing a pillbox hat.