Question:
Which political party did Ella Reeve Bloor belong to in Sep, 1897?

Context:
 Ella Reeve Bloor is a member of the Socialist Party of America from Jan, 1901 to Jan, 1919. 
 Ella Reeve Bloor is a member of the Social Democracy of America from Jan, 1897 to Jan, 1898. 
 Ella Reeve Bloor is a member of the Socialist Labor Party of America from Jan, 1898 to Jan, 1901.

Answer:
Social Democracy of America