“Several associations have online or print directories of specific types of museums.

• The American Association of Museums has an online directory of its member museums that can be searched by name, location, or category.
• The American Association for State & Local History publishes a Directory of Historic House Museums.
• The American Association of Botanical Gardens and Arboreta maintains an online directory of its member gardens.
• The American Zoo & Aquarium Association has an online directory of its members.
• The Association of African American Museums has an online database of its member museums and related institutions.
• The Association of Children’s Museums has an online directory of member children’s museums in the United States and other countries.
• The Association of Railway Museums maintains an online database of its members.
• The Association of Science-Technology Centers has an online database of more than 400 science centers and museums worldwide.
• The Council of American Jewish Museums has an online directory of its members as well as links to other Jewish museums around the world.
• The Council of American Maritime Museums has an online directory of its members.
• The Fire Museum Network has an online directory of the almost 300 museums devoted to the history of firefighting.

Volume 2 of The Official Museum Directory (OMD) provides an index to museums in more than 70 categories, such as toy & doll museums, military museums, folk art museums, and entomology museums. The OMD is the most comprehensive directory of museums in the United States, with more than 8,300 entries. Some public and university libraries have The Official Museum Directory in their reference sections. The OMD is published by the National Register Publishing Company and may be ordered online.”

Read the full article at the American Association of Museums website