August 31, 1838, Loughborough, Leicestershire, England.
January 12, 1919, Nottingham, England.
At age 10, Adcock joined the church choir and sang solos at occasional concerts.
At age 16, he became an usher in a boarding school in Spalding, Lincolnshire, and was appointed choirmaster of the chapel and conductor of a choral society.
Around 1858, he joined the music establishment of Henry Farmer in Nottingham, and rose to the position of manager, a job he held until Farmer’s death in 1891. He was also choirmaster at Castle Gate Church in Nottingham for 21 years. Upon Farmer’s retirement, he was appointed conductor of the Nottingham Sacred Harmonic Society, where he served 16 years. He compiled The School Hymnal Tune Book, to which he contributed a number of tunes.