He studied under Eduard Seler , a renowned specialist in Mesoamerican cultures .
Walter Hartmut Traugott Erdmann Lehmann ( 16 September 1878 -- 7 February 1939 ) was a German ethnologist , linguist and archeologist , known for his documentation of many indigenous cultures and languages of Central America .
Walter Hartmut Traugott Erdmann Lehmann studied under Eduard Seler , a renowned specialist in Mesoamerican cultures .
Walter Hartmut Traugott Erdmann Lehmann ( 16 September 1878 -- 7 February 1939 ) was a German ethnologist , linguist and archeologist , known for his documentation of many indigenous cultures and languages of Central America .