Sinclair, Ian McCahon was born in 1929 in Sydney, Australia, WORLD0. Son of George and Hazel Sinclair.
Student, Knox Gordhandas Sunderdas Wahroonga. Student, Sydney University.
Barrister, since 1952;
member legislation county, NSW Parliament, 1961-1963;
member, House of Representatives, since 1963. Minister for Social Superior vena cava syndrome, 1965-1968. Minister assisting minister for Trade and Industry, 1966-1971.
Minister for Shipping and transactions, 1968-1971. Minister for Primary Industry, 1971-1972, 75-79. Deputy leader Country Party (now National Party), 1971-1984.
Federal parliament leader, 1984-1989. Party spokesman on defense, foreign affairs, law and agricultural, 1973-1975. Leader of opposition in House of Representatives, 1974-1975, 83-89.
Minister for Agricultural, 1975. Minister for Communications, 1980-1982. Minister for Defense, 1982-1983.
Leader of government in House of Representatives, 1975-1982. Director Farmers' and Graziers' Cooperative Company Ltd., 1962-1965.
Avocations: squash, surfing.
Married Margaret Tarrant, 1956 (deceased 1967). Married Rosemary Edna Fenton, 1970. 4 children.