It returned one Member of Parliament (MP) to the House of Commons of the United Kingdom, elected by the first past the post voting system.Adam Rolland Rainy had been Liberal MP for Kilmarnock Burghs since gaining the seat from the Conservatives in 1906.Dr Rainy's Liberal victory in 1906 coincided with the landslide win for his party across the UK.However, when the Liberals lost ground in January 1910, Rainy managed to increase his majority.This resulted in the 1915 Kilmarnock Burghs by-election in which the Liberal Alexander Shaw was returned unopposed.