The newly created National Party chose Frederick Doidge as their contestant for the seat. In the 1935 election, Doidge ran as an Independent in the Rotorua electorate, despite briefly courting the anti-Labour Democrat Party.[7] Of the four candidates, he came second after Labour's Alexander Moncur.[8] As a new party this was National's first real electoral test to see if the unification of the United, Reform & Democrat parties would be able to combat Labour more effectively.
Results
The following table contains the results of the by-election:
The Manukau electorate was abolished at the next election in 1938. Osborne shifted to the new seat of Onehunga, which he held until his death in 1953. Doidge later represented the electorate of Tauranga for National from 1938 to 1951, when he retired.[7]