Brock was born in Worcester, attended the School of Design there and then undertook an apprenticeship in modelling at the Worcester Royal Porcelain Works. In 1866 he became a pupil of the sculptor John Henry Foley. After Foley's death in 1874, Brock finished some of his commissions. It was his completion of Foley's statue of Prince Albert for the Albert Memorial which first brought Brock to prominence.
In 1901 Brock was asked to make a colossal equestrian statue of Edward the Black Prince for Leeds City Square, and was also given perhaps his most significant commission, the vast multi-figure Imperial Memorial to Queen Victoria to be set up in front of Buckingham Palace. He had previously made statues of the queen to celebrate her golden and diamond jubilees, and designed the depiction of her "veiled" or "widowed" head, used on all gold, silver and bronze coinage between 1893 and 1901. According to legend, at the unveiling of the memorial in May 1911, George V was so moved by the excellence of the memorial that he called for a sword and knighted Brock on the spot.
Brock was elected an associate of the Royal Academy in 1883 and full member in 1891.
He married in 1869, and had eight children. His youngest son was the painter (Charles) Edmond Brock.
Statue of Richard Baxter, 17th century English Puritan church leader and divine scholar. Originally in the Bull Ring, Kidderminster but moved to its present site, outside St Mary's parish church in March 1967. Unveiled 28 July 1875.
Design of Queen Victoria's "veiled" or "widowed" head on British coinage and medals (1893-1901).
Queen Victoria Monument, Carlisle. Erected 1902.
Memorial to William Gladstone. St John's Gardens, Liverpool. Unveiled 1904.
Statue of Sir John Everett Millais, outside Tate Britain, Millbank, London. Represented standing holding a palette and a paintbrush. Originally erected on the east side of the gallery in 1905; moved to its present position at the rear of the building in 2000.
^A plaster model for Eve was shown at the Royal Academy in 1898; a marble version (1900) is in the collection of the Tate and Brock also some smaller bronze replicas. See "Sir Thomas Brock: Eve, 1900". Tate. Retrieved 2015.