Thomas sailed as an ordinary seaman for three years on the schooner Miss Evans and the brig Rowland Evans; then as able bodied seaman on the Rowland Evans, Copiapo and the schooner Glad Tidings. Five years later he was bosun on the Rowland Evans, Manhattan and Glad Tidings.
In 1871 he obtained his second mates certificate and two years later he gained his first mates certificate and served in the latter capacity on the Courier of North Shields, the brigs Hannah, Mayfield and General Holt as well as the schooner Balmoral and the barque Jane Maria. He then moved to steam ships such as the Faithful and the Loxton. In 1881 he became a master mariner, however what ships he captained elude us for now. In 1888 he was mate on the previously mentioned Loxton. Perhaps as befell many a sailing master, steamship commands were hard to get. Recently it has come to light that he was First Officer on the S.S. Treasury in early 1915. He was 68 years of age and he later died in the same year. This means that for 27 years there are no details of his maritime career, which could give credence to Ann Surnam's recollections that he had once commanded a private vessel taking an Indian nobleman on long voyages. Hopefully more information will come to light.
Thomas married Gwendoline Rice b.1852 in Borth, she was the daughter of John Rice Tyllechwedd Farm. John Rice is noted as a shareholder in the schooner Francis owned by the Daniel family; so family connections were strong. Whilst Thomas was at sea in 1891, his wife Gwen returned from Liverpool to reside in Borth where they were to remain for a number of years. With Gwen were the children Mary Eleanor b.1878, Thomas James b.1881, John William b.1885 and Annie Gwendoline b.1887. Also with them was Gwen's 92 year old widowed father John Rice b.1799. Tragically both of Captain Thomas Pryse's sons, Thomas and John, died in the First World War. (This information and new research makes a strong case for their inclusion on the Borth War Memorial).