(1894 — 1948)
Hans Wesso was the professional name of German-born magazine artist Hans Waldemer Wessolowski. He was educated at the Berlin Royal Academy, and worked his way through school doing cartoon work.
A great traveler, Wesso traveled around the world twice.
He was one of the most influential SF artists of the 1930s, doing magazine covers as well as interior illustrations. In addition to Amazing, he did artwork for Amazing Quarterly, Astonishing Stories, Captain Future, Dynamic, Fantastic, Marvel, Startling Stories, Super Science Stories, Strange Tales, Strange Stories, Thrilling Wonder Stories, and Unknown.
For more on his career, see http://www.sf-encyclopedia.com/entry/wesso_h_w