This snapshot is not identified and the wording on the flags and caps is obscured, although one hat says Massachusetts I believe. It makes me think of a military graduation or some other type of ceremony.
UPDATE: Consensus from the comments is that this photo is from an American Legion event. Thanks everyone!
Who Were They? 
looks like and American Legion post. a military veterans group found in thousands of communities, and very prominant in the 1950s-70s with WWII vets swelling there ranks. the American legion is for any military veteran who served honorably in peace or war, in the US or overseas. the VFW a similar vets group is for vets who served in wartime and overseas, but the VFW has laxed itd qualifications, and many legions and VFWs have merge, to form a vets club. could be south Brattleboro ? and possibly a ceromony or election of officers event. by the glasses and formal quasi military uniforms this must be the 50s or early 60s I would guess. the hats and insinia are still standard legion attire, no oner wears uniforms, only vests since the 80s.
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Ed, you are for sure my go-to reader for military knowledge! Thank you for always adding your experience and knowledge – it really helps those of us (me!) who don’t know much about the military!!
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Yes American Legion..a great organization! :)
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