How many niece's and nephew's did Louisa May Alcott have?

Louisa May Alcott had three sisters. She was the second of four daughters: Anna Bronson Alcott, Louisa May Alcott, Elizabeth Sewall Alcott, and Abigail May Alcott.

Anna Bronson Alcott was the oldest; Elizabeth Sewall Alcott and Abigail May Alcott were the two youngest.