NATION BUILDERS - T.K. Whitaker (1916 to 2017). John Bowman details the contribution of Ken Whitaker who joined the Irish civil service in 1934. A public servant in the true sense, he had a meteoric rise to the top in the Department of Finance and was instrumental in planning the economy. He played a pivotal role in diplomatic relations and was deeply influential in advising Jack Lynch on policy on Northern Ireland. Even in retirement, he continued his contribution to initiatives as diverse as prison reform, scientific research and a constitutional review.