Panamanian politicianIn this Spanish name, the first or paternal surname is Lefevre and the second or maternal family name is Ossa.

Ernesto Tisdel Lefevre de la Ossa (1876–1922) was a Panamanian politician.

He was elected as the third presidential designate by the National *embly for the term 1918-1920. In that capacity he became the President of Panama from January 1920 to October 1920.

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