The son of John Brooke and Mary Colbeck, Brooke was educated in Thornes House School, Wakefield. From 1964 to 1982, he worked as Assistant Secretary of the Inland Revenue Staff Federation, from 1982 to 1988 as Deputy General Secretary and as General Secretary from 1988 to 1995.
Brooke, the son of John Brooke and Mary Colbeck, was educated at Thornes House School in Wakefield. He held positions such as Assistant Secretary, Deputy General Secretary, and General Secretary for the Inland Revenue Staff Federation from 1964 to 1995.