Addison Morton Walker was an American comic strip writer, best known for creating the newspaper comic strips Beetle Bailey in 1950 and Hi and Lois in 1954. He signed Addison to some of his strips.

Hi and Lois is an American comic strip about a suburban family. Created by Mort Walker and illustrated by Dik Browne, both of whose children currently work on the strip, it debuted on October 18, 1954, distributed by King Features Syndicate.