Emma Waldo Smith Marshall (May 11, 1879 – January 24, 1943) was an American Baptist missionary educator and linguist, born in Burma.

[2] Her grandfather, Samuel Francis Smith, was an editor and writer, best known as author of the lyrics to "America (My Country 'Tis of Thee)",[3] She lived in Newton Centre, Massachusetts as a child,[4] and graduated from Vassar College in 1900,[5] and spent a year in training at the Newton Theological Institution, before returning to join her parents' work in Burma.

[6][7] Smith taught Greek New Testament classes at the Karen Baptist Theological Seminary in 1902 and 1903.

[14] The Harry and Emma Marshall Papers are in the collection of the American Baptist Historical Society in Atlanta.

[6] There are other relevant papers in the American Baptist Foreign Mission Society records, 1813-1961, at Cornell University.