Biography Kuhn, Isobel: By Searching. V1. 12-Mar-2011

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Isobel Selina Miller Kuhn, born Isobel Selina Miller, aka, "Belle" (December 17, 1901 – March 20, 1957), was a Canadian Christian missionary to the Lisu people of Yunnan Province, China, and northern Thailand. She served with the China Inland Mission, along with her husband, John, as a Bible translator, church planter, Bible teacher, evangelist and authored nine books about her experiences.
Source: Wikipedia

About the book (from a review found in the web):
Isobel Miller gave up God for worldly pursuits. But as graduation approached and her engagement was broken, she questioned that decision. "If You will prove to me that You are, and if You will give me peace, I will give You my whole life." God heard Isobel's prayers. He reached out to her, ending years of searching. Her response was to dedicate her life, along with her husband, to missionary service in China.