Cornwall was born at Mill Creek, Utah Territory.

[4] Under his leadership the choir made some of its first trips outside of the United States.

He wrote The Story of Our Mormon Hymns as well as a centennial history of the Mormon Tabernacle Choir, A Century of Singing, published by Deseret Book in 1958.

[5] Cornwall composed the music to John Jaques's "Softly Beams the Sacred Dawning," which is hymn #56 in the 1985 LDS Church hymnal.

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