African Nationalist leader Jomo Kenyatta (centre), former Mau Mau leader, pictured with Tom Mboya, one of the leaders of the Kenya African National Union, and the Mayor of Nairobi, Alderman Harold Travis (right), when Kenyatta attended a civic reception and luncheon given in his honour in the Charter Hall, Nairobi. In his speech, Kenyatta paid tribute to the efficiency of the sweepers who, he said, were the backbone of the city. 2 October 1961