You might try Oxford Art Online for a scholarly biography of the designer, images, and a bibliography.
Next, take a look at ARTstor, searching under the designer's name. You'll need to register to download images. If you want, you can save details of the images too!
Finally, you can broaden your search by searching the library catalog for books on fashion design. From the basic search screen enter the term fashion design and choose within subject heading from the drop down menu to improve the precision of your results.