 Most of these organizations used the Ferrer Center at their hub for activities.Here individuals like Alexander Berkman, Emma Goldman, Luigi Galleani, and members of the Anarchist Red Cross and the Industrial Workers of the World spent a great deal of their time.During these meetings, plans were made to stage protests at the Tarrytown, New York estate of Standard Oil magnate John D. Rockefeller, owner of the Ludlow mines in Colorado.