Possible Clues:

• Hold for questioning
• Author of 'Little Women' and 'Little Men'
• "Little Women" writer
• Literary giant from Concord, Mass
• Louisa May ---, author of Little Women
• American author whose works include 'Little Women'
• Louisa May —, author of Little Women
• Friend of Emerson
• Creator of the characters added in 17-, 28-, 44- and 57-Across
• 'Under the Lilacs' writer, 1878