Three years later , he was appointed as the full - time secretary of the staff side of the Whitley Council for the Northern Ireland Civil Service .
McCusker became a senior clerk with the Ministry of Commerce in 1965 , but remained active in the union .
Three years later , McCusker was appointed as the full - time secretary of the staff side of the Whitley Council for the Northern Ireland Civil Service .
McCusker became a senior clerk with the Ministry of Commerce in 1965 , but remained active in the union .