List of Famous people who died at 66

David Frantz Bradford was a prominent American economist and professor of economics and public affairs in the Woodrow Wilson School at Princeton University.

Alexander Dinghas was a Greek mathematician.

John C. Corlette (1911-1977) was an English architect who, in 1949, founded the private English-style boarding school Aiglon College in Switzerland. The school is registered as a not-for-profit charitable institution, with an international student intake. Prior to founding Aiglon, Corlette was a teacher at Gordonstoun, a private school in Scotland, and he included some of that school's educational ideas in the formation of Aiglon.

Bishop Demetrius Martin Greschuk was a Canadian Ukrainian Greek Catholic hierarch. He served as the Titular Bishop of Nazianzus and Auxiliary Bishop of Ukrainian Catholic Eparchy of Edmonton from 27 June 1974 until 28 April 1986 and as the second Eparchial Bishop of Ukrainian Catholic Eparchy of Edmonton from 28 April 1986 until his death on 8 July 1990.