I'm researching the McLeod's so don't have as much on the sutherlands, or as much detail
Alexander Robert Sutherland was born at Badbea, Latheron, Caithnes
His sister Christian (Christina) Sutherland was born at Badbea, Latheron, Caithness she married John McLeod on 5 may 1822
Their father was William Sutherland of badbea. He married twice. Alexander's mother was W Sutherland's second wife, ad she was also a Sutherland from Fuchton Loch (Catherine Sinclair)
Alexander & Christian's grandfather was David Sutherland of Dusdale.
Alexander took up land at Upper Pahau, now known as Hinakura.
Alexander's daughter Catherine married James Mcleod, their home known as the gums is in good order in Dublin St, Martinborough.
Alexander's oldest son was William he married Esther McLeod (James younger sister) William and Esther had a daughter Elizabeth who married Donald Cameron and went to live at Moeraki, Hingakura. Their descendants still own the property.
Christina McLeod (nee sutherland above) had a son, Farquar (my great great grandfather) he married a Sutherland, Jane Ogilvie and they married in 1859 at Caithness. They boarded the Mataoka and arrived in Wellington 13 spet 1859.