This is a bit of a long shot but by any chance has your surname been transposed in the past as Heppenstall Heppinstall Hempinstall or any variations like that? My reason for enquiring is that my partner Beth has Heppenstall in her family tree and on one of the births we have spelling was the same as yours. Her ancestor was Eliza Heppenstall who was supposed to have come from Enniskilien in Ireland and married Thomas Burton in 1864 in Melbourne. Any chance there is a connection somewhere??
Peter Briggs & Beth Stewart