Button ID ? CHA

[etex]

Found in central Louisiana, is back marked Fecheimer & Bros, which is a post war backmark, I assume the A is for Academy?

 

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[fyrffytr1]

You might try contacting them. They are still in business.
Fechheimer Brothers Co. | Official Site

 

[Bramblefind]

Maybe Chamberlain Hunt Academy out of Port Gibson, MS?

https://en.wikipedia.org/wiki/Chamberlain-Hunt_Academy

There is a button for them listed in Alberts (SU 54) which is more elaborate than your CHA button. But I thought the location looked promising for where it was found and also on a quick search I did see this yearbook image with the "CHA" on the wall in the back -

Explore 1964 Chamberlain-Hunt Academy Yearbook, Port Gibson MS - Classmates

 

[etex]

Chamberlain seems to be the most likely school based on location, thanks