Peckham on Family Tree Circles

I am looking for information about the family of a James Cullen (b. circa 1880),possibly in Scotland, who is believed to have emigrated to New Zealand at around the end of the 19th/ start of the 20th centuries. James was a brother of my grandmother Margaret Cullen. Margaret married my grandfather, James Rose MacGillivray in Hamilton in Scotland on 29/06/1900. Any information about James and his decendants would be very much appreciated.

I am looking for descendants of James and Agnes Cullen of Australia. James was born in Chapelhall on 10/08/1855 and died in Australia on02/08/1939 ages 83 years. His wife Agnes (nee Anderson) was born, possibly in Kilmarnock in around 1853/54, and died in Australia on 04/09/1932 aged about 78 years. Their daughter Margaret married my Grandfather, James Rose MacGillivray on 29/06/1900 in Hamilton, Scotland. I believe James and Agnes, with children William (age 21) and Mary (age 18) sailed to Brisbane, Australia in August 1911 on board the Torilla.
Any information would be very much appreciated.

I am looking for relatives of my Dad's brother. My Uncle's name was David Macgillivray (born 1900).He went out to what was then Southern Rhodesia with his wife Isabella (nee Brownlie) and their children Ronald and Isobel in the early 1950's. Any information about the aforementioned relatives would be very much appreciated.