[2][3][4] He was elected Whig MP for Athlone at a by-election in 1843—caused by the previous poll being declared void—and held the seat until 1847 when he did not seek re-election.
[2][5][6] His father, Ebenezer John Collett, was also Tory MP for Grampound from 1814 to 1818, and then Cashel from 1819 to 1830.
[6] He committed suicide by shooting himself in the library of his home, Arnewood House, near Salisbury in December 1856.
[7] He was buried with his first wife Emma in a tomb in Kensal Green Cemetery.
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