Federal Agencies:

Smithsonian Institution
National Archives and Records
National Park Service
Intelligence Services
Foreign Service

State Agencies:

State archives and libraries
State museums, parks, and historic sites

Municipal Archives

Arts and Humanities Councils and Commissions

Staff of legislator, governor, or mayor
National political party headquarters
Public interest advocacy groups
Political campaigns

News department of local public and commercial radio stations
News department of local or national TV
Newspapers
Magazines

Public and private schools
Colleges and universities
Museums
Gardens and conservatories
Camps
National and state parks

History museums and historic sites
Historical associations and societies
Cultural heritage organizations
Historical projects
Research and service institutions

Law firm
Corporate legal department
Government agencies
Public advocacy group

Museums
Historical homes
Art galleries
Special collections
Historical societies
Libraries
Universities and colleges
National, state, and municipal government
Corporations
Non-profit organizations
Research institutes

Retail Firms
Wholesalers
Manufacturers
Insurance firms
Real estate agencies