They acted from the end of the 19th century to the beginning of the 20th century.
The Norwegian Müller family inhabited the Tiger Delta for four generations.
Juan S. was the second generation and amateur photographer, member of the Sociedad Fotográfica Aficionados de Argentina, possible founder of Sociedad Fotográfica Niepce in 1893. He was married to Catalina Ambort.
They had a son named Adolfo Müller born on November 27, 1892 in Buenos Aires; of whom we also preserve part of his photographic collection.