Edmund Ralph Brockman

Brockman was born in Kent, England, to Frances Elizabeth (née Hamersley) and William Locke Brockman. His parents moved to Western Australia when he was an infant, arriving in the Swan River Colony in January 1830 (just months after its establishment). Several members of Brockman's family also became members of parliament – his younger brother, Henry Brockman; his uncle, Edward Hamersley Sr.; and two of his first cousins, Edward Hamersley Jr. and Samuel Hamersley. At the age of 18, Brockman took over the management of Seabrook, a property on the Mortlock River which his father had bought for him. He moved to Herne Hill (on the Swan River) after his father's death in 1872, and in 1875 was elected chairman of the Swan Road Board. He served in the position until 1877, and then again from 1879 to 1883.

Prominent in agricultural circles, Brockman was elected to the Legislative Council at an 1878 by-election for the seat of Swan, replacing Walter Padbury. He served for just over two years, but was defeated in 1880 by E. T. Hooley. Brockman returned to parliament in June 1887, when he was nominated to the Legislative Council by the governor, Sir Frederick Broome. He retired from the Legislative Council in March 1889, but was re-appointed in December 1890, following the council's reconstitution as an upper house (rather than a unicameral chamber). Brockman's final period in parliament lasted for just under a year, as he resigned to accept an office of profit (a government contract to supply hay). He eventually retired to Kenwick, and died in September 1908, aged 79. Brockman had married Elizabeth Deborah Slade in 1852, with whom he had six children. One of his sons was Frederick Slade Drake-Brockman, who was a Surveyor-General of Western Australia.