In college one of the great influences on James was Bishop James Doyle. In the controversies over tithes, education and the freedom of religion Dr. Doyle, writing under the pen name J.K.L, was considered very influential. An atmosphere of patriotism in the college was encouraged, and this was shown later, not just in James Fintan's later life, but in that of students such as John O'Leary, Richard D'Alton Williams and Maurice Leyne. While in college James worked hard and learnt the basics and principles not just of chemistry but law also. This understanding of law, Tomás Ó Néill suggests became evident from his writings later on. He suffered greatly through ill health during his time in college, and in February 1826, being ill and very weak he had to return home. Not much is known about James after he left college, most information being based on oral tradition. One suggestion is that he became an apprentice to a Dr. John Jacob, who worked in Portlaoise county hospital. In the June 1827 Dr. Jacob died and was replaced by his son who was a young medical student. The suggestion is that they did not get on and James left the hospital. Another account put forward for this period is that he left the hospital because of a "disappointment in love.” It is then suggested that James intended to sail to France. Tomás Ó Néill is fairly certain that James never went to France, and points to the fact that there is no reference to it in James later writings. However, in T. F. O’Sullivan, account of his life, in The Young Irelanders, states that he did in fact go and lived there for a couple of years, being supplied with money by his mother. What is known though, is that there is no real definite account at all about him for several years. Catholic Emancipation had been granted in 1829, and according to Patrick Lalor, Catholics would never be fully free while the burden of a foreign faith was on them in the form of tithes. Supported by his family, Patrick at a public meeting in Portlaoise, said he intended to give up paying tithes to a foreign faith. As a result of this declaration, Arthur Moore Mosse, who was the secretary of the Grand Jury, asked Patrick to call off his campaign offering to give him a receipt for the year's tithe, but this he refused. Mosse then offered him a receipt that would free him from tithes for the rest of his life, and this was also refused.