johansen family tree

hello I am trying to find any information on ole johansen and martha johansen (nee)svendsdatter was her maiden name these charming people are my GGG GRANDPARENTS. They traveled to new zealand on the hovding ship in 1872 from norway and ported in napier. if any body could help with photos or help me with a family tree of there life in norway before departing to n.z I would be so GREATFULL CHEERS KIRSTY