The school above mentioned as begun by Henry Thoreau in this summer of
1838 was joined in by John, after finishing his teaching at West
Roxbury, and was continued for several years. It was in this school
that Louisa Alcott and her sister received some instruction, after
their father removed from Boston to Concord, in the spring of 1840. It
was opened in the Parkman house, where the family then lived, and soon
after was transferred to the building of the Concord Academy,[13] not
far off. John Thoreau taught the English branches and mathematics;
Henry taught Latin and Greek and the higher mathematics,--and it was
the custom of both brothers to go walking with their pupils one
afternoon each week. It is as a professional schoolmaster that Henry
thus writes to his sister Helen, then teaching at Roxbury, after a
like experience in Taunton.
[Illustration: _Concord Battle-Ground_]