Authors, American Conservationists 3 Environmental degradation 3 Environmental policy 3 Feminists 3 History 3 Nature conservation 3 more ... Wetland conservation 3 African American authors 2 African American women authors 2 English teachers 2 Homes and haunts 2 Last years 2 Last years of a person's life 2 Social conditions 2 Victims of crimes 2 Biography 1 Childhood and youth 1 Childhood and youth of a person 1 Correspondence 1 Exploration 1 Exploration of outer space 1 Families 1 Homes 1 Intellectual life 1 Manners and customs 1 Social life and customs 1 less ...