05/08/2026
Robert George Thomas (1820-1883), better known as just R G Thomas, was the architect who designed the Cathays Cemetery chapels, main entrance, and lodge. Although known for his work in south Wales, it is in Australia that he is best known.
Born in Shrewsbury, he was just 16 years old when, and an apprentice surveyor and draughtsman, he sailed on the First Fleet to South Australia in 1836 for the establishment of the city of Adelaide. There, he surveyed the site selected for the city, and may well have drawn Adelaide’s first map.
In 1846 he returned to Britain and set up an architecture practice in Newport in partnership with William James who he had met in Australia. Over the next 15 years Thomas designed numerous churches, public buildings and private houses in south Wales, including Ebenezer Chapel in Charles Street, Cardiff. Newport Museum and Art Gallery have a collection of his architectural drawings which can be viewed on the People’s Collection Wales website. https://www.peoplescollection.wales/collections/377875
In 1861 he returned to South Australia where he was appointed, in 1866, Assistant Government Architect, and shortly thereafter Government Architect. His achievements during this time include the Supreme Court building and the Flinders Street Baptist Church in Adelaide. In 1874 he was appointed secretary to the Central Board of Health a position he held until his death on 14 April 1883.