However with the spectre of war looming Hennessy took the decision to return to Ireland and in December of that year he held his first one-man exhibition at the Country Shop on St Stephens Green Dublin opened by Mainie Jellett.
However with the spectre of war looming and conscription a real possibility Hennessy took the decision to return to Ireland The Last Bohemians by Roger Bristow. In December of that year he held his first one-man exhibition at the Country Shop on St Stephens Green Dublin opened by Mainie Jellett.