These shoes, called '23 Skidoo', are available through American Duchess! Both a historically accurate online shoe shop and a wonderful blog on costuming that always has something inspiring!
The 23 Skidoo comes in two different types, a brown/white colorway as well as a white/white colorway. The all white is especially interesting...you can customize your own with leather paint!
For more info, check this out.
Thanks for reading! :)