I second this, here’s a good list of schools to add.
Holderness School 
Tabor Academy 
NMH 
Kent 
Madeira (all-girls) 
Emma Willard (all-girls) 
New England Innovation Academy? (you’d need to do a lot of research for this one) 
Westover (all-girls) 
Williston Northampton 
Mercersburg 
Hill School
I got all of those from the Hidden gem thread
  
  
    <p>A number of us promoted the Hidden Gem designation as a means of offering new CC users information about the many truly great schools that receive little airtime compared to the half-dozen well known players (like Exeter, Andover, SPS etc). Most experienced boarding school parents put the importance of making a thoughtful, accurate match of child and school above any other criteria and having complete information is essential.</p> 
<p>The Hidden Gem list is subjective, of course (no other way to have such a list, really). The core attributes are: primarily boarding, academically excellent (non-therapeutic), with a healthy community, great (often unique) extracurriculars, financial strength and a wonderful faculty. Beyond those basics, schools don’t appear (or not appear) based on statistical differences like admit rate. I’m a Thacher booster because the school is mentioned less frequently than the big, brand names, even though it is a diamond among gems!</p> 
<p>Below is the last ap…
   
 
             
            
               
               
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