|Known for||Gaston Dethier, organist, composer|
Born in Liège, he was the son of organist Emile Jean Joseph Dethier (1849-1933), the brother of violinist Edouard Dethier, and the uncle of physiologist Vincent Dethier. He studied at the Royal Conservatory in his native city with Alexandre Guilmant. He was awarded premiers prix in organ, piano, harmony, and fugue from the conservatory.
In 1886, at just 11 years of age, Dethier was appointed organist at the Église Saint-Jacques-le-Mineur de Liège. He eventually left there to work in the same capacity at the Église Saint-Christophe de Liège.
Relocation to United States
He emigrated to the United States in 1894 where he eventually became a naturalized citizen. He was organist at The Church of St. Francis Xavier from 1894 until 1907. After he left in 1907 the position was filled by Italian organist Pietro Yon who would eventually become organist at St. Patrick's Cathedral.
Dethier is best remembered today as the composer of a set of Variations on 'Adeste Fideles' (1902) which is occasionally performed today.
- Schrijver, Karel de. Bibliografie der belgische toonkunstenaars sedert 1800. Leuven: Vlaamse, 1958, 152 p.
- "Biography of Gaston Dethier at www.saintanthonynewbedford.org/". Archived from the original on 2005-03-17. Retrieved 2010-06-25.
- "YouTube video of organist Christian Wilson performing Dethier's variations on Adeste Fideles'". YouTube.