Bonham’s family came from Essex, where he inherited property from an uncle and namesake.
In 1802 Bonham unsuccessfully contested Newark against the Newcastle interest. In 1806 he came in unopposed for Leominster, where he faced no contest in 1807 either. His local agent claimed to have secured his return ‘on condition of never voting against the [Grenville] administration, in or out of office’, but he did not follow that line.
Bonham was out of Parliament until 1824, when his daughter married George Canning the statesman’s cousin and namesake. He died 9 Apr. 1830.
