[3] 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.
[4] He was also a leading advocate for the bringing of tribal chiefs and kings into the expanding fold of the Action Group.
In 1951, Thomas represented the Western region as Minister of Transport under the McPherson Constitution and an advocate for self governance in Nigeria.
[7] 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 Adeyemi II.
[9] He was chancellor of the African Church of Nigeria and was an editorial board member of the Daily Service.