[2] Haliburton first attempted to enter provincial politics in the 1949 election, but was defeated by 184 votes.
[4] In the 1956 election, Haliburton was re-elected in the new Kings South riding by 774 votes.
[5] In November 1956, Haliburton was appointed to the Executive Council of Nova Scotia as Minister of Agriculture and Marketing.
[10] When George Isaac Smith was sworn in as premier in September 1967, Haliburton retained his previous cabinet roles, but was also named Minister of Education.
[2][11] In May 1968, Smith shuffled his cabinet, moving Haliburton to Provincial Secretary.