CIA - Chiefs of State and Cabinet Members of Foreign Governments: Estonia
- List of government officials and their titles, updated weekly. Also includes the head of the central bank, ambassadors to the United States and Permanent Representatives to the UN, New York.
- https://www.cia.gov/library/publications/world-leaders-1/world-leaders-e/estonia.html

Wikipedia - Johan Laidoner
- Commander in chief of the Estonian army before the Second World War and ensuing Soviet occupation. He died in a prison camp in Russia.
- http://en.wikipedia.org/wiki/Johan_Laidoner

Wikipedia - Konstantin Päts
- First president of the independent Republic of Estonia, prior to the Soviet occupation. He was deported by the Soviets.
- http://en.wikipedia.org/wiki/Konstantin_P%C3%A4ts

World Statesmen - Estonia
- Chronological overview of Estonian history and statesmen.
- http://www.worldstatesmen.org/Estonia.html

Wikipedia - Toomas Hendrik Ilves
- Life and career of the President of the Republic of Estonia. The son of Estonian refugees in Sweden, he grew up in the United States and became President of Estonia in 2006.
- http://en.wikipedia.org/wiki/Toomas_Hendrik_Ilves

Wikipedia - Lennart Meri
- Estonia's first elected president after Estonia regained it's independence in 1991. President from 1992 to 2001 he has become a national icon.
- http://en.wikipedia.org/wiki/Lennart_Meri

Wikipedia - Arnold Rüütel
- Chairman of the Supreme Soviet of the Estonian SSR during the Soviet occupation from 1983 to 1991 and president of the independent Republic of Estonia from 1991 to 1992 and again from 2001 to 2006.
- http://en.wikipedia.org/wiki/Arnold_Ruutel