Cecil Charles Transom was born on 2 Dec 1841 at Broseley, St Leonards, Shropshire. He was christened on 2 January 1842 at Madeley, Shropshire. He sailed for New Zealand 16 August 1863, when he would have been 22 years of age. He arrived in the ship Green Jacket, from London into Auckland on 13 December 1863. In New Zealand he married Isabella Ellen "Ellen" Adam at the Congregational Chapel, Manchester Street, Christchurch on 2 January 1865. They were married by Rev. J.H. Habens. In the marriage notice, Ellen was listed as being the eldest daughter of John Adam of Glasgow.
I've also found an Isabella Archer Adam who married William Davidson in 1865. I theorised that this could have been a brief marriage prior to her marriage to Cecil Transom, but given that the marriage to Cecil took place in January of the same year, I think that is highly unlikely.
Elizabeth Rankin Transom born in 1871 in Greytown
I've managed to find some In Memoriam messages inserted by Cecil's wife and daughter in the Sydney Morning Herald on Friday 16 March 1900.