These MPs were elected by the first past the post voting system.
Under the Reform Act 1832, the constituency's representation was increased to two members, elected by the bloc vote system.
The constituency was abolished by the Redistribution of Seats Act 1885 for the 1885 general election, when Denbighshire was split into two single-member constituencies: the Eastern and Western divisions, each returning one Member of Parliament.
Williams-Wynn was appointed Steward of the Queen's Lordships and Manors of Bromfield and Yale, requiring a by-election.
Morgan was appointed Judge Advocate General of the Armed Forces, requiring a by-election.