Hanssens started his career as a trumpet player with the 7th Line Regiment, where he played under the baton of Torra-Morel and Schroeder. On 13 January 1839 he earned the first prize at a singing contest of the 'Société royale des Mélomanes'. He pursued his singing education with Baumès-Arnaud at the Conservatory of Ghent and in 1846 he graduated in 'chant français'. On 7 February 1852 he was appointed assistant to the French singing teacher Albert Dommange at the conservatory of Ghent.
As a tenor Hanssens sang in Ghent at St James's and St Salvator's church as well as for the 'Société royale des Choeurs'. He also performed on a regular basis with a male vocal quartet. In 1855 he was appointed singing teacher at the boarding school of the English Canonesses in Bruges. In 1870 he returned to his native Ghent.
Hanssens could also claim some religious compositions.
© Studiecentrum voor Vlaamse Muziek vzw - Jan Dewilde (translation: Joris Duytschaever)