Euphoniumist · Educator · Composer
James D. Thornton
North Dakota euphoniumist, composer, and educator — a 'President's Own' Marine Band soloist (1974–81) who became Minot State's director of bands and a decades-long International Music Camp faculty member.

| Nationality | American |
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James D. Thornton (born 23 January 1953, New Rockford, North Dakota) is an American euphoniumist, music educator, and composer whose career runs from the nation’s most prestigious military band back home to the bandrooms of North Dakota. He was raised in a family of musicians — his father, Donald Thornton, was a band director in Dickinson, where James and his five siblings received their musical training and all went on to professional careers. He began on cornet before taking up tuba and euphonium, the last of which became his specialty (though he also solos on trombone and tuba), and he studied euphonium with Harold T. Brasch, a founding figure of American euphonium playing.
From 1974 to 1981 Thornton was a euphoniumist in “The President’s Own” United States Marine Band in Washington, D.C., performing for four U.S. presidents, touring the country each year, and appearing frequently as a soloist — often in his own compositions and arrangements. Returning to North Dakota, he earned a Bachelor of Music from the University of Mary in Bismarck (1986) and a Master of Music from Northwestern University (1987). He taught instrumental music for grades 5–12 in the Hazen Public Schools (1988–1992) and then served as Director of Bands at Minot State University from 1992 to 2000.
Since 1983 he has been a faculty member of the International Music Camp’s Summer School of the Fine Arts at the International Peace Garden on the North Dakota–Manitoba border, a role he continues each summer. He is also an active composer and arranger — his band and brass works, including a setting of the William Byrd Suite, Three Chorales for Band, and the brass quintet The King’s Hunt, are published by Alliance Publications — and the author of the reflective essay Thoughts from the Euphoniumists’ Table. He resides in Dickinson, North Dakota, teaching music.