Belgian born Victor De Wilde move to San Francisco in 1925 at age 22 where he attended both the California School of Fine Arts in San Francisco and California College of Arts & Crafts in Oakland. De Wilde was another artist who worked in the WPA in the 1030s, though not as a printmaker.
"De Werkvrouw" was done in 1936 and was titled both in Dutch and in English as "The Washerwoman". This impression may well have been printed for relatives or Dutch speaking friends. Given the date it was done it was likely to have been printed in a small number of proofs and never formally editioned.
Like Matisse and Picasso DeWilde is able to create a complete composition using just a line and foregoes almost all details or shading except for a little foul bite or sandpaper speckling. The woman sits, cleaning a floor with a cloth and pan of water.