Complex sentence: Supported by his wife's work at home, Studd built up an extensive missionary outreach based on his centre at Ibambi and although she made a short visit to the Congo in 1928 that was the last time they met; she died in the following year.
Split into simpler sentences: Supported by his wife's work at home, Studd built up an extensive missionary outreach based on his centre at Ibambi. That was the last time they met; she died in the following year.