Here are a few drawings from Charlene Sundblad's collection. The two drawings below are sketches of Helen Hennesy. One by Ward Kimball, the other by Jesse March.
I believe the sketch above is by Kimball, also. I recognize Walt, Ham Luske and Kimball, but who is the man standing with the cigar. It's probably obvious but as I already mentioned I am very bad at recognizing faces, even more when they are caricatured.