The Longwood Day School, also known as Longwood Country Day School, was a private school attended by students from wealthy backgrounds. It was located on the south side of Browne St. just west of St. Paul St. and ran from 1913 to 1940. Note that a potential source of confusion is that there was also the Longwood School on St. Mary’s St.

The stereoview had a partial list of names. From front-to-back and left-to-right: Row 1: Horatio Harris Alden, Jr. Row 2: Graham Lester, Jr., Henry Leonard Alden, Julian Bullard Doggett Row 3: ?, John Davis Sprague Row 4: Douglas Schuyler Rath, Frank Streeter Gardner, William ? Row 5, 6: Unlisted Teacher at desk: Ralph M. Clark