Dana WilliamsI recently finished Martha Ackelsberg's book "Free Women of Spain: Anarchism and the Struggle for the Emancipation of Women" about the Mujeres Libres organization during the Spanish Revolution. It might be one of the most impressive explorations of what came to be anarcha-feminism (even though ML rejected the "feminism" label).
They organized against "ignorance, capitalism, and women's subordination", within the anarchist movement and among the working classes.