Leonard Bloomfield
Leonard Bloomfield (1887 - 1949) was an American linguist. In 1914 he wrote Introduction to the Study of Language which was in later editions just called Language. The book is intended for a general audience and addresses general issues about language often ignored.
Bloomfield began the philology of the Algonquian language family with his reconstruction of Proto-Algonquian; his seminal paper on the family remains a cornerstone of Algonquian historical linguistics today.
See: structuralism