In 1927, Gresham, accompanied by Biliyati Kapacika, moved to Mozambique in search of employment. They entered the country through the Milange area and proceeded south to Inhaminga, Sofala. There they both found employment with the Trans-Zambézia Railway.

In Inhaminga they also found a congregation of a so-called Watch Tower movement and its pastor, Robinson Kalitera. When Kalitera heard the Biblical teachings set out in The Harp of God, his eyes were opened. Recognizing that he had been mistaken, he and his entire congregation began associating with Jehovah’s organization.

Janeiro Jone Dede, a humble African farmer, learned the truth in 1939 in Inhaminga.