The Society of Civil War Historians is committed to promoting both scholarship and fellowship among historians, graduate students, and professionals who interpret history in museums, national parks, archives, and other public facilities.

The Costume Society of America advances the global understanding of all aspects of dress and appearance. We work to stimulate scholarship and encourage study in the rich and diverse field of costume.

The American Numismatic Association is a nonprofit educational organization dedicated to educating and encouraging people to study and collect money and related items.

It's easy to find a member of the Professional Numismatists Guild (PNG), a nonprofit organization composed of the world's top rare coin dealers, paper money and precious metals dealers and numismatic experts.

PCNS exists to promote, develop, and foster Numismatics in all its branches along educational, historical, and scientific lines, and to provide opportunities for collectors to share in an organization of mutual interest and good fellowship.

The goal of the International Bank Note Society (IBNS) is to promote, stimulate, and advance the study and knowledge of worldwide banknotes and paper currencies along educational, scientific and historical lines.

The Professional Currency Dealer Association counts among is members over 100 of the world's leading specialists in currency, stocks and bonds, fiscal documents, and related paper items.

The Society of Paper Money Collectors is a corporation organized to promote, stimulate and advance the study of paper money and other financial documents in all their branches along educational, historical and scientific lines.

The Souvenir Card Collectors' Society (SCCS) was founded in 1980 to foster the study, collection and dissemination of printed mementos of American history.

The purpost of the Madame Alexander Doll Club is to collect and preserve Madame Alexander dolls and to conduct any and all activities that will promote collection of Madame Alexander dolls and related items.