There was also a trickle of immigration from the neighboring Portuguese islands, escaped slaves, and prospective planters. Although a few of the Fernandinos were Catholic and Spanish-speaking, about nine-tenths of them were Protestant and English-speaking on the eve of the First World War, and pidgin English was the ''lingua franca'' of the island. The Sierra Leoneans were particularly well placed as planters while labor recruitment on the Windward coast continued, for they kept family and other connections there and could easily arrange a supply of labor. The Fernandinos proved to become effective traders and middlemen between the natives and Europeans. A freed slave from the West Indies by way of Sierra Leone named William Pratt established the cocoa crop on Fernando Pó, forever altering the destiny of the colony.