[1] Jourdain was employed in the colonial service, and went to Mauritius, where he was a government member on the General Board of Health from 1866 to 1874, and a member of the Legislative Council from 1868 until 1874.
Following his return to the United Kingdom, he continued his connection to Mauritius, and was Honorary Commissioner for Mauritius at the Colonial and Indian Exhibition in 1886, the same year he was appointed a Companion of the Order of St Michael and St George (CMG) for his services to Mauritius.
[1] He served as a Lieutenant for the City of London from November 1892.
[1] He was created Knight Commander of the Order of St Michael and St George (KCMG) in the New Year Honours list on 1 January 1900,[2] and received the order from Queen Victoria during an investiture at Windsor Castle on 1 March 1900.
Following her death, he married secondly, in 1884, Ada Mary Currie, 2nd daughter of James P. Currie by his first wife Anna Dora Brett, sister of William Brett, 1st Viscount Esher.