High Quality Content by WIKIPEDIA articles! Derek Francis Quigley, QSO (born 31 January 1932) is a former New Zealand politician. He was a prominent member of the National Party during the late 1970s and early 1980s, and was known for his support of free market economics and trade liberalization. Quigley left the National Party after clashing with its leadership, and later co-founded the ACT New Zealand party.