Dermot Louison was born into a middle class family in Woodbrook in 1933. Dermot later spent his early childhood days in Cascade and St Ann's, Port of Spain. He received his primary school education at the St Ann's R.C. School and completed his secondary education at the Tranquility Government School.
Louison developed a strong interest in art at an early age, largely self taught, though with a brief attendance at an art school in London, England, during the early 1950's at which time he traveled the European continent extensively. He developed into a professional artist after his return to Trinidad in 1959. Since then he has held many successful exhibitions both locally and within the Caribbean region.
Louison has grown into a household name, admired and appreciated by many who harbour a love and fascination for scenic Trinidad and Tobago and lost or dying cultural & historical habits of the community during and after the B.W.I. period.
The islands's role as an American military base which, coupled with industrial development, paved the way to drastic changes in cultural pattern and attitudes: these are among the most sought after themes in his work. Others are folklore traditions of which the Tourist Board of Trinidad & Tobago printed a series of postage stamps.
Louison can be described as a man of highly individual and difficult character who shuns publicity and prefers to spend his time hiking and fishing in various secluded parts of the island. His works are greatly admired by art enthusiasts and adorn the walls of private homes of established reputation as well as business institutions and banks, international and local alike.