Apparently Knapp as a formal corporation doesn't exist, but availability of its shoes (ordering online) DOES exist - through employees and children of the founders. Here's another link. This one is directly to Knapp:
"It is with this web site that I am proud to honor my father, Louis Grossman, and continue his legacy of selling a quality product to a specialized market place.
As an Internet web developer and a Knapp Counselor, I developed the first Knapp Shoe web site in 1995 which was later redesigned for Knapp Shoes, Inc., which was then acquired by Iron Age Corporation. In January 2007, Iron Age Corporation filed for bankruptcy and Knapp Shoes became an American legacy.
However, the Knapp reputation for being a high-quality product serving a specialized market could not easily be defeated by a bankrupcty.
I, together with several former Knapp Shoe employes and sales counselors, are rebuilding the Knapp brand, one customer at a time.
It is with extensive knowledge of e-commerce web site design and knowing the Knapp product line that this site seeks to offer you, the Knapp Shoe customer, the easiest way in which to order your shoes, belts and accessories from Knapp. Once your place an order, your billing, shipping and past order information is saved so that the next time you want to re-order your favorite shoe, or order a new shoe, your shopping and checkout experience will be a simple one."