Frederick Barnhardt was a Methodist missionary in China associated with the Yenping Mission of the Methodist Episcopal Church. The collection (1929-1949) contains diaries and minor correspondence.

Clara Dyer was a Methodist missionary in Ch'angli, Hopei (Hopeh) Province, northern China from the early to mid-twentieth century. The collection includes personal letters and reports that reflect her missionary work.

Joseph W. Dyson (1889-1965) was a Southern Methodist missionary and educator at Soochow University, Taipei, Taiwan (Formosa), from 1919 until 1949, and returned 1959-1965. The collection includes correspondence, diaries, publications, and photographs that reflect his work at the university, 1959-1965.

Myra Jaquet was a Methodist missionary in northern China from 1911 to 1942. The collection includes correspondence, literary manuscripts, personal journals, and photographs.

Edwin Dwight Kellogg (1882-1952) was a Congregational minister in Forest Grove, Oregon, and a former missionary in China. The collection (1930-1952) contains sermons and also correspondence from China.

Henry V. Lacy, his wife, Jessie Lacy, (nee Ankeny), and Jessie Lacy's sister, Louise Ankeny, were missionaries in China. The collection (1909-1952) contains correspondence, mementoes and ephemera, a scrapbook, and photographs.

Idabelle Main (1887-1969) was a Christian missionary in China, serving from 1909 through 1941 and then again from 1946 to 1949. She served in Tientsin, Shanghai, and Foochow at multiple colleges and also worked as an editor. The collection includes correspondence, church materials, diaries and a biography written by her niece. Also included are photographs from her time in China.

Esther Morse (1898-1975) was a medical missionary in China and Pakistan. The collection contains correspondence, diaries, speeches, biographical information, scrapbooks, and photographs that offer a detailed picture of the experiences of a medical missionary woman whose life intersected with some of the most significant transitions in 20th century China and Pakistan.

Herbert H. Pommerenke and his wife Jean were missionaries in China for over twenty years. The collection contains correspondence to and from China regarding the life and customs of Chinese people and the activities and problems of the missionaries, and also newsletters, 1923-1946.

Elsie Reik was a Christian missionary in Foochow (Fuzhou) China from the 1920s through 1950, when she returned to the United States. The collection consists of correspondence that provides some documentation on missionary work and on life in Foochow (Fuzhou).

Edith Simester was a Christian missionary in China and later Brazil, serving from the 1930s through the 1950s. The collection includes incoming correspondence and transcriptions of letters to her mother.

Dennis V. Smith served as a Methodist Episcopal missionary doctor in Peking, China. The collection (1915-1926) contains letters written by Smith while he was head of the Methodist Hospital (John L. Hopkins Memorial) in Peking.

Myra Snow was a Methodist missionary in Tientsin, northern China from the late 1920s through the early 1940s. The collection comprises letters that reflect her work as a missionary.

Lyrel Teagarden (born April 23, 1894) served as a missionary in China from 1920 to 1951, in Jamaica from 1952 to 1956, and worked for two years in the Yakima Indian Mission in Washington State (during the early 1940s). The collection includes correspondence, day journals, biographical material, literary manuscripts and newsletters that reflect her missionary career, primarily during the China period.

Grace Terrell was a Christian missionary and teacher at a girl's school in Seoul, Korea (later, South Korea), from 1931 to 1966. This collections consists almost entirely of correspondence Terrell received during those years from family, fellow missionaries, and students.

William Moses Welch (1837-1914) was a Methodist clergyman, serving congregations in the Midwest and the West. The collection consists of diaries, and letters to his son, Eldred. There are also letters from Mr. and Mrs. Kenneth Duncan, missionaries at Canton Christian College, Canton, China, 1914-1917.