He was not re-elected in 1881, but in December 1882 was named senator for life.
Thus a Dominican prior ranks ipso facto as a prelate during his three years of office, but, if not re-elected, loses this dignity with his jurisdiction.
In 1640 Henderson was elected by the town council rector of Edinburgh University - an office to which he was annually re-elected till his death.
He was annually re-elected until 1841; in 1842 he was elected to the state Senate, and in the following year, on the Whig ticket, to the National House of Representatives.
He was re-elected in 1827, took an active part in the establishment of the July monarchy, was appointed a councillor of state (1830), and in 1837 was made a peer of France.