In 1946, he became the legal adviser of Egbe Omo Oduduwa and was one of the founding members of the Action Group. Prior to joining Action Group, he was a successful Lagos lawyer and was a member of the Nigerian Youth Movement. He is credited as the first prominent Nigerian member of the political elite during the colonial era to make a strong case for regional-based political parties, which, he believed would be equipped with the necessary knowledge to develop their regions and also form a coalition at the center. He was also a leading advocate for the bringing of tribal chiefs and kings into the expanding fold of the Action Group. To this policy, he undoubtedly gave much of his own experience as the Balogun of Oyo — a title he received in 1949. The strategy later proved to be a potent framework for mass mobilization in some towns. The Oloyes Thomas and Awolowo sometimes had rival political thoughts, many of which were never settled before his death. Most of his ideas on regional parties, which ended up becoming approximated with the early self-government political structure, were never fully reconciled with Awolowo's ideas, which were based on federalism. In 1951, Thomas represented the Western region as Minister of Transport under the Mcpherson Constitution and an advocate for self governance in Nigeria. He resigned from the portfolio during a constitutional crisis in March, 1953. He later became Minister of Works after a Constitutional Conference in London. Thomas was regarded as a brilliant but very arrogant man who had strained relationships with some of the local leaders like Sir Ahmadu Bello and Alaafin Aderemi II. He was said to have been rude to the Alaafin at an Oyo Divisional Council meeting because the Alaafin did not stand up in reverence to him. He was a leader of a group that included the majority of the Oyo Mesi who were against the rule of Alaafin Aderemi on the grounds that the Alaafin was against the capitalization of taxes used to finance education and health.
Personal life
The Oloye Thomas married Lucretia Shobola Odunsi. Among his children are Eniola and Dapo. He was chancellor of the African Church of Nigeria and was an editorial board member of the Daily Service. He was sometimes outspoken and this made him incur enemies. On 22 November, after returning from Oyo, Thomas became ill at his Yaba, Lagos home, he was later taken to Ijebu-Igbo for further treatment. He died in Ijebu-Igbo on 23 November 1953 which was his daughter's second birthday.
