Conversation so far:
What did Amos Bronson Alcott and his family do upon returning to their old homeplace?
In 1860, Amos Bronson Alcott was named superintendent of Concord Schools.
How many years was Amos Bronson Alcott the superintendent of schools?

Question: What did Alcott do in his later years?
Self-contained rewrite: What did Amos Bronson Alcott do in his later years?