However, the town did not increase dramatically in size in the next few years, and the electorate was still only just over 400 by 1865, although the extension of the franchise at the 1868 election trebled this.
By the time of the Third Reform Act, Frome was too small to continue as a constituency in itself and the borough was abolished with effect from the 1885 election.
Nevertheless, Frome contributed only a minority of the voters in the constituency, which also included Weston (Bath), Radstock, Bathampton and Batheaston, to say nothing of the freeholders of Bath, who voted in this division under the arrangements that gave property owners in boroughs a vote in the adjoining county constituency; by the time of the First World War, the population was around 60,000.
This made the constituency marginal between the Conservatives and Liberals, and the victor's majority was rarely more than a few hundred votes.
Lopes resigned after being appointed a judge of the Common Pleas Division of the High Court of Justice.