I've just found an original program from the 1941 "Charlot's Revue" starring Rita Hayworth. In it, are listed Pearl Argyle and Harry Asmus. I've attached a screen shot of the program. Their names appear on the middle of the right page, near the fold, in section 3. You may have to zoom your screen a little to read t hem.
http://imgs.inkfrog.com/pix/vintagerocknroll/CIMG0912_003.JPG