U.S. Air Mail Service Pioneers aviation history articles. Airmail milestones early pilots. Photographs of antique airplanes. Post Office ran mail 1919-1927. Commercial airlines worldwide origins.

An independent research library focusing on American history, literature, and culture through 1876.

Provides leadership, service and support for the preservation and interpretation of American state and local history.

An academic society devoted to the history of medicine and all aspects of health.

The professional organization for all historians.

The organization is interested in history of American Jews.

Founded in 1974 to encourage the study of printing history and its related arts and skills, including calligraphy, typefounding, typography, papermaking, bookbinding, illustration, and publishing.

ACWR - a roundtable of the Society of American Archivists, was created to address the specialized needs of religious archives.

Dedicated to the promotion and preservation of the history and traditions of the American soldier.

An interdisciplinary group dedicated to the advancement of scholarship in all aspects of the period from the later seventeenth through the early nineteenth century.

Comprehensive collection of constitutional materials, including books, articles, and tools.

Nonprofit organization rediscovering the legacy of Lewis and Clark through reenactments and other living history programs. Site includes expedition history, photos and other details of bicentennial activities, and other news and information.

A not-for-profit organization dedicated to the preservation of Florida's lighthouses and maritime heritage.

A non-profit organization that locates, identifies, collects and preserves historical data; records oral history; and publishes source materials and historical articles of the Fort Smith area.

A collection of writings, studies, and information about research on The Book of Mormon and other manuscripts at Brigham Young University.

Website includes historical background, board of directors, membership, photos and complete coverage of the Indian Memorial.

Organization acting to protect and preserve the symbols, culture and heritage of the American South.

Promotes the cause of religious freedom, perpetuates the memory of the Huguenot settlers in America, and commemorates the principal events in Huguenot history.

A non-profit educational organization promotes, in partnership with the National Park Service, the public's understanding, appreciation, and enjoyment of Michigan's Isle Royale National Park and Keweenaw National Historical Park.

An organization of scholars, union members, students, and citizens promoting a wider understanding of the history of working class people, their communities, and their organizations in the United States.

Commemorating the legacy of the Lewis and Clark expedition of 1803-1806.

The Foundation's mission is to honor the remarkable historic legacy of Lewis and Clark through research, education, preservation, promotion, and coordination.

A non-profit, historical, educational foundation located in Urbandale, Iowa, USA.

An alliance of historical, cultural, and educational institutions created to speak for and to enhance the professionalism and effectiveness of all organizations that collect, hold, interpret and protect the cultural and material heritage of the State.

Preserve for future generations representative selection of all historic resources (art, records, books, photographs, oral histories, artifacts, journals, sites, buildings) important to an understanding of Montana history.

Regarded as "the clearinghouse" for U.S. women's history information and resources, the NWHP site provides excellent links to biography-rich sites for student researchers, program ideas for all constituencies, a downloadable "Test Your Women's History I.Q." quiz sheet, and other delights.

Founded in 1998 as a non-profit organization to promote education, research, and preservation of America's rich national heritage of the naval services.

Comprehensive historical information on the Pere Marquette Railroad, which served Michigan, Ontario, Indiana Illinois, Ohio and Wisconsin. Contains maps, equipment rosters, timelines and photos of preserved equipment.

A national umbrella website coordinating local, community organizations for the preservation of Greek (Hellenic) American history.

Founded in 1981 to serve practitioners of oral history in Arizona, southern California, Nevada, New Mexico and contiguous areas. Site provides publications list, meetings and workshops, information, and constitution.

International organization of professional and amateur historians interested in one or more facets of the Alamo of history and popular culture. Site provides journal articles, links, book reviews, and meeting info.

Dedicated to linking the study of history with computer technology, with annual meeting and prizes, membership, journal archives, constitution, officers and tenure guidelines.

The Gilder Lehrman Institute of American History promotes interest in history through lectures, exhibitions, teacher seminars, prizes and fellowships, and electronic resources including an online historical textbook and annotated historical documents.

A nonprofit, tax-exempt organization founded in 1942 to spearhead the creation of Independence National Historical Park. Now develops and publishes web content dealing with Philadelphia and 18th-century American history.

A non-profit, non-partisan organization which promotes education about Thomas Jefferson through film, web, library, outreach, and numerous support programs.

Advocacy group provides current information on legislation and legislative proposals, hearings, and federal policy issues of concern to historians, archivists, librarians, and the general public.

Serves over 600 special collections librarians, archivists, preservationists, conservators, and records managers in Arizona, Arkansas, Louisiana, Oklahoma, New Mexico, and Texas.

A non-profit organization formed in 1989 to identify and preserve buildings and sites that have historical or archaeological significance to the Hispanic, early Texas, French, and native/indigenous cultures.

Tas tours, lesson plans, official White House Christmas ornaments, books, and gifts.

Founded in 1884. Publishes a scholarly journal and provides information on the Revolutionary activist, including a full-text archive of many of his works, as well as membership information, and links to related material.

Explanation of the history of and relationships between the Society of the Cincinnati, the Society of the Sons of the Revolution, and the Sons of the American Revolution.

History and techniques of the Corps, emphasizing the Mexican War, western expansion and the Civil War.

Organization for students interpreting history from a Christian perspective. Meeting, field trip, and other event information; pictures and member listing.