The Shamrock is a 1777 Irish play or pasticcio opera by John O'Keeffe. It was first staged on 15 April 1777 at Crow Street Theatre in Dublin. According to White (1983),White, Eric Walter: A Register of First Performances of English Operas (London: Society for Theatre Research, 1983), p. 49. it is unsure whether the work was performed as a straight play or as a pasticcio opera to music by William Shield, as in its altered version as an afterpiece for the London stage, The Poor Soldier (1783).Brasmer p. vii.
References
Bibliography Brasmer, William & Osborne, William (eds.): The Poor Soldier (1783) (Madison, Wisconsin: A-R Editions, 1978)