Lillian Ross, who was called No Il-yeon, was born in Busan on November 30, 1900. Cyril Ross, father, and mother Susan Shank Ross, were the first missionaries dispatched to Korea via Busan to conduct missionary work in Manchuria and organize gynecology, and her mother, a doctor, introduced Western medicine and took care of many patients, contributed to the spread of the gospel.

Ross graduated from Pyongyang Foreign School in 1917 and returned to the United States, graduating from Park College in 1922 and Huron College in 1924, earning a bachelor's degree in family studies, and studying religious education and Bible at the Presbyterian Theological Seminary in 1926.

Ross was sent to Korea as a missionary and devoted to missionary work for eight years from 1926 to 1932, seven years from Ganggye in Pyeongbuk, two years from 1940 in Pyongyang, and after liberation in Daegu and Gyeongbuk.

At the end of the Japanese colonial rule in 1938, only a few missionaries remained, and the Prayer Incident occurred, and one of the ringleaders who participated in it was Ross. As a result, she was ordered to leave the country and moved to the Philippines for three years of missionary work.

When Korea was liberated after World War II, Ross visited Korea again and was assigned a post to work in the Daegu branch with the Campbell missionary.

She served as a teacher at a Bible school founded by missionary Gerda Bergman and led the Rural Church Bible Study. In 1954, she served as the principal of Gyeongbuk High Bible School. Sponsored by American churches, she ran an orphanage and a maternity home for war widows.

In 1966, she finished her term as a missionary for the Northern Presbyterian U.S.A, and as an independent missionary, she evangelized patients as a hospital evangelist at Dongsan Christian Hospital, taught the Bible to nurses and employees, and guided worship. Ross helped missionary John Sibley when he worked on medical and health services for the community on Kojedo. Ross also made a significant contribution to the early establishment of the Korean Church Women's Mission.

She finished her ministry in Korea in 1983 and returned to the United States to stay in a nursing home, and was called by God in 1993 at the age of 93.

Lilian Ross with Dongsan Christian Hospital staff (first row, third left)

Lillian Ross, who went out to medical treatment activities in the village with hospital staff

Lillian Ross (Grandmother in Hanbok) and John Sibley in Kojedo