Sir Robert Menzies.
Harold Holt was the only Australian Prime Minister to disappear from Cheviot Beach in 1967. He was Australia's 22nd Prime minister, and the 17th different Prime Minister.
17th prime-minister
Earle Page who was caretaker Prime Minister for 19 days in 1939.
John Turner
Abhisit Vejjajiva was the Prime Minister of Thailand from 17th December 2008 to 5th August 2011.
Manmohan Singh
17th prime minister of Australia
Golda Meir was the 4th Prime Minister of Israel from the 17th March 1969 to the 3rd June 1974.
John Napier Turner was the 17th Prime Minister of Canada in 1984 from June 30 to September 17, a mere 79 days.
Madhav Numar Nepal was the Prime Minister of Nepal in 2010. He became the 33rd Prime Minister of Nepal on 2009 May 25, and resigned on 2010 June 30, serving until 2011 February 6.
Martin Brian Mulroney was the Prime Minister of Canada in 1987, serving from the 17th of Sept. 1984 through till the 24th of June 1993AAParliament of Canada - Parliamentary information site.See link.
Harold Holt was the 17th Prime Minister of Australia. He was in power from the 26th January 1966, until his disappearance while swimming on the 17th December 1967. There have been many urban myths about his disappearance ranging from being abducted by an UFO to being kidnapped by a Chinese submarine,