Emil Hassler
Emil Hassler ( 20 June 1864 – 4 November 1937 ) ( French:' , Spanish: ' ) was a Swiss physician , ethnographer , naturalist and botanist well known for his collections and contributions to the description of the flora and culture of Paraguay . 
<triplet> Emil Hassler <subj> 20 June 1864 <obj> date of birth <subj> 4 November 1937 <obj> date of death <subj> Swiss <obj> country of citizenship