For several decades, members of the Colenso family conducted a vigorous humanitarian campaign across two continents, keeping in touch and exchanging information with one another between England and Natal. Prolific writers, continuously immersed in the often frenetic day to day activity of their campaigning work, they had little time to consider preserving for the future the vast amount of correspondence and documentation they produced. The result is that much of their prodigious output survives today only by chance, dispersed between different collections in the United Kingdom and South Africa.
The Colenso papers are authored not by an individual but severally by the members of a family, the family of John William Colenso, the first Bishop of Natal, his brother in law, his wife, their five children and two daughters in law.