I want to know the answer to the following question:
How were James O. Fraser, Alfred James Broomhall, and Isobel Kuhn involved with Tibet?
All the background I'm provided with is that "In 1877, the Protestant James Cameron from the China Inland Mission walked from Chongqing to Batang in Garzê Tibetan Autonomous Prefecture, Sichuan province, and "brought the Gospel to the Tibetan people."". Is that enough to answer the question?