Albert Samuel Gatschet (1832-1907) born in Switzerland. He trained as a linguist in universities of Bern and Berlin. After his arrival in the United States, he was a pioneer in the study of Native American Languages. In 1877 he became an ethnologist of the US Geological Survey. In 1879 he became a member of the Bureau of American Ethnology.

His study of the Klamath, published in 1890 is recognized as outstanding.