[2] Dalziel moved to New South Wales to work as a journalist for the Sydney Echo.
He also spent several years in the United States in the management department of various newspapers, and when he returned to England in 1890 he set up his own business, Dalziel's News Agency.
He sold off his newspaper interests to further his work in the cab industry, setting up several companies including General Motor Cab Company Ltd, the Pullman Car Company and the International Sleeping Car Share Trust Ltd.[3] At the January 1910 general election he was elected as the Member of Parliament (MP) for Brixton,[4] holding the seat until his defeat at the 1923 general election.
[6] He regained the Brixton seat in 1924,[5] and held it for a further three years until his resignation from the House of Commons on 9 June 1927, by taking the Chiltern Hundreds[7] In 1927 he was raised to the peerage as Baron Dalziel of Wooler, of Wooler in the County of Northumberland.
[9] He is buried in a family mausoleum in the eastern section of Highgate Cemetery in north London, close to the main entrance.