McCay's original artwork has been poorly preserved. McCay insisted on having his originals returned to him, and a large collection that survived him was destroyed in a fire in the late 1930s. His wife was unsure how to handle the surviving pieces, so his son took on the responsibility and moved the collection to his own house. The family sold off some of the artwork when they were in need of cash. Responsibility for it passed to Mendelsohn, then later to daughter Marion. By the early twenty-first century, most of McCay's surviving artwork remained in family hands.