Career
He painted genre motifs and interiors as well as landscapes. He worked for several years from 1889 as restorer at the Nationalmuseum in Stockholm. Malmgren was a student at the Royal Institute of Art in Stockholm 1879-1883.
He studied the picture restoration under A. Hauser in Munich 1887-1889.
He was drawing teacher at Katarina elementary school in Stockholm, 1883-1887, and 1889.