English firm of organ builders. Founded in Rochdale in 1861 by Thomas Hugh Harrison (1839-1912), it moved to Durham in 1870, becoming Harrison & Harrison when Thomas' brother James joined him in 1872. Like Willis, they and their successors (notably Thomas's son Arthur) built or rebuilt many cathedral organs, including those at York (1915), Manchester (1916), Gloucester (1920) and Exeter (1933), as well as instruments in college chapels and parish churches, including King's, Trinity and St John's colleges, Cambridge, and St Mary Redcliffe, Bristol. The firm's most ambitious work was the reconstruction and enlargement of the Willis instrument in the Royal Albert Hall, London (1924, 1934). Its most important contribution was the revival of chorus and mixture work. More recent Harrison organs include those in the Royal Festival Hall (1954; designed by Ralph Downes) and the cathedrals of Wells, Ely, Coventry and St Albans.
