New ZealandHe and his family emigrated to New Zealand in 1900, where he tried farming before taking a job as the sub-editor of the New Zealand Times. In 1908 he was elected chairman of the New Zealand Socialist Party. He managed the Maoriland Worker in 1911, and from 1913 to 1925 was editor of New Zealand Truth.
Hogg died at his home in the Wellington suburb of Johnsonville on 9 May 1941. Robert Hogg had a lifelong interest in Scottish literature, and amassed a library of over 2000 volumes (over 1100 titles). Hogg also wrote several books in prose and verse under the pseudonym of "Robert Blochairn".
In 1941 The Robert and Mary Hogg Bequest of over 1100 titles concerning Scottish literature, history and topography was donated to the National Library of New Zealand.
With Jim Roberts he kept the Wellington Socialist Party out of the 1913 Unity Scheme to combine the socialist and Labour parties in New Zealand.
He also edited a socialist newspaper, the Commonweal, where he wrote a column under the name of "Blochairn", about "The world of work", and a second column, by "Busy Bee", which displayed an expert knowledge of Scottish literature and dialect.
He began work at the post office in Musselburgh, East Lothian, where he was a member of the Independent Labour Party In Scotland he was active in the Scottish ILP and a friend of Keir Hardie.