Copyright owners for works with commercial value often make themselves (or their agents) easy to find. A simple online search may return contact information.
Contact information for professional creators and their agents is aggregated by many resources, including:
Libraries and archives that collect the works of individuals or organizations can have contact information for relevant copyright holders. Even if the work you are using is not from such a collection, the information may apply to your copyright search. Try searching for “[Name of Creator] Papers” or “[Name of Creator] Collection” in a search engine or in these online resources:
