Rowley was the eldest son of Thomas Rowley, a headmaster of Bridgnorth Grammar School. Rowley senior joined the Canterbury Association on 10 April 1851 as a committee member. He purchased land from the association in Canterbury, New Zealand. Rowley junior bought land at Barrys Bay at the head of Akaroa Harbour; rural section 63. Rowley senior bought RS 85 west of Christchurch in the Riccarton area, from which the suburb of Middleton developed. Rowley senior was chosen as the Dean-designate for the yet to be built ChristChurch Cathedral, but he never came out to the colony. His appointment upset Bishop Selwyn, and the proposed cathedral chapter was dropped again until the cathedral was built.
Life in New Zealand
Thomas Rowley arrived in Lyttelton on 2 February 1853 on board the Minerva. His younger brother John Cotton Rowley also came to Canterbury, but at a different time. In about 1855, he had a homestead built on RS 85 in Riccarton that he called Middleton. Rowley sold the land and the homestead to Charles Bowen. The homestead is today the library of primary pupils of Middleton Grange School. Rowley bought further landholdings once in New Zealand. In 1854, he bought Sandy Knolls. The land comprised and was adjacent to the Waimakariri River. Whilst all his runs had managers, he spent much of his time here. In August 1853, he bought the lease of Homebrook, which he almost immediately sold again. Rowley also started acting as agent for absentee landowners. In that capacity, he assisted Robert Tooth with the purchase of the leasehold of Mt. Possession from John Acland and Charles George Tripp. Rowley bought Alford together with Frederick Tooth, a brother of Robert Tooth. Another purchase was Clent Hills, which he bought in about 1859 and on-sold to Robert Tooth in 1865. Buying rural sections gave the right to choose town sections, and as part of the above purchases, Rowley junior chose eight quarter acre sections in central Christchurch; they made up around half the block described by Cathedral Square, Worcester, Manchester, Hereford, and Colombo Streets. Rowley sold that land when he left New Zealand, and in 1905, much of the land fronting Worcester Street was taken by the Government under the Public Works Act for the Government Building. Rowley was active in church matters and was a supporter of St Peter’s Church in Upper Riccarton, not far away from his Middleton homestead. When St Peter's was dedicated in 1858, a large group of parishioners was entertained at Middleton. Rowley was also on the commission that organised the construction of ChristChurch Cathedral. On 23 July 1857, Rowley married Emily Mathias, the eldest daughter of Octavius Mathias. Her father was the first vicar of the Church of St Michael and All Angels, which at the time was Christchurch's pro-cathedral. His younger brother, John Cotton Rowley, married Mary Rose Mathias, the youngest daughter of Octavius Mathias. Rowley was elected unopposed on 25 January 1861 for Ellesmere. He resigned the following year. Rowley Peak behind Fairlie was named after Thomas Rowley senior. The mountain has since been renamed Fox Peak and is now a ski-field.
Later life in England
In 1863, Rowley decided to return to England, and he advertised that he needed to receive open accounts by the end of the year. Rowley, his wife and four children left New Zealand on 4 February 1864 on the White Star for London to settle on Guernsey. He sent ferrets to Canterbury in 1867, which are these days one of the prime pests. He died in 1903 at Southwold, Suffolk.