In the 1930s his son Aage Weimar was attached to the firm, he worked with design, and he took part in bringing Evald Nielsen into the art deco style with its tighter use of form.
I det årti, sønnen Aage Weimar kan tilknyttet firmaet, arbejdede han med design, og han var med til at bringe Evald Nielsen ind i art deco-perioden med dens mere stramme formsprog.