When Jonas Simanavičius was born in 1862, in Vilkaviškio Rajonas, Marijampolės Apskritis, Lithuania, his father, Kazimieras Simanavičius, was 47 and his mother, Ona Brokaitė, was 29. He had at least 1 son with Konstancija Gražulytė. He died on 12 July 1938, in Vilkaviškis, Marijampolės Apskritis, Lithuania, at the age of 76, and was buried in Gražiškiai, Lithuania.
Variant of Jonah , from the New Testament Greek form of the name. Both Jonah and Jonas were used by the Puritans, the latter from the 1560s at least.