Herbert Spencer (1820–1903): Anarchist British parliamentarian. Advocated the "right of people to ignore the state." 
Auberon Herbert (1838–1906): Anarchist British parliamentarian, founder of "voluntaryism" and anti-democrat. Advocated that the voting majority has no more right to decide a man's life than "either the bayonet-surrounded emperor or the infallible church." 
Josiah Warren (1798–1874): Inventor, social theorist, and believer in "individual sovereignty." Influenced John Stuart Mill. States "commit more crimes upon persons and property than all criminals put together." 
Stephen Pearl Andrews (1812–1886): Abolitionist who tried to sell Texas to Britain to prevent it becoming a slave state.