There are so many good ones. Lottie Moon was a Southern Baptist missionary in the late 1800's and early 1900's. When she returned to China as a missionary after her second furlough in 1904, her area of China was impoverished and undergoing a famine. She begged for more money to help, but the mission board sent none. Without anyone knowing it, Lottie took from her own food and money and gave to those around her. In the process she personally starved. This went on for 8 years until, in 1912 she was discovered by fellow missionaries to weigh only 50 pounds and they sent her home. She died before she ever arrived. She died enroute.