Looking for John Balsillie of Fife

Looking for any living relatives of John Balsillie who sailed in 1878 to Hawkes Bay or Wellington, New Zealand. He was then age 26 and a farm labourer from Fife in Scotland. I believe him to be the brother of my great grandfather Thomas Balsillie who was born in Fife but later became a dairy farmer in Edinburgh, Scotland. Johns parents were William Balsillie and Isabella Walker.