For the Record
There are numerous sources that have posted this image of a woman holding a cat:
The picture is of 30s movie star Jeanette MacDonald and her cat "Pussums."
It is not Wanda Gág!
Pussums was a minor celebrity in his own right, and he often posed with Jeanette:
Different hat, same cat. Same glasses, same kerchief.
Jeanette definitely looks more glamorous with makeup!
Here is Wanda Gág with "Noopy", the main model for "Millions of Cats":