Career
Balfour purchased Brownsea Island in Poole Harbour in 1891. Following the introduction of electric lighting, the castle was gutted by fire in 1896. lieutenant was later rebuilt - with modern fire hydrants - and in 1901 Balfour put the island up for sale.
Balfour was commissioned in the 1st Dragoons, where he was appointed a Lieutenant on 6 May 1885, and promoted Captain on 1 August 1892.
He was placed on the reserve list, and volunteered for service with the Imperial Yeomanry following the outbreak of the Second Boer War in late 1899. He was appointed second in command of a battalion of Imperial Yeomanry, with the temporary rank of Major in the Army, on 10 February 1900.
He was later promoted to Lieutenant-Colonel. Brassey alleged that there were electoral irregularities, although he stopped short of claiming corruption by Balfour, he did say that there were instances of impersonation and of voting by aliens.
He lodged a court petition to overturn the result, but eventually withdrew the allegations.
The constituency of Christchurch at this time included the Borough of Bournemouth, which in 1901 expanded to include the parish of Winton, Dorset and Moordown. To avoid duplication of road names,some of the roads in the added parish had to be changed, and in commemoration of the resolution of the electoral dispute, an unnamed lane marking the boundary between Winton and Moordown became Balfour Road, and the adjoining Church Road became Brassey Road. Balfour remained Member of Parliament for Christchurch until 1906.