California African American Museum Los Angeles, California
California Science Center Los Angeles, California
California State Railroad Museum Sacramento, California
Cape Fear Museum of History and Science Wilmington, North Carolina*
Center for Jewish History New York, New York
Cerritos Library Cerritos, California
Cincinnati Museum Center Cincinnati, Ohio
City Lore New York, New York
City of Austin Parks and Recreation Department Austin, Texas
City of Las Cruces Museum System Las Cruces, New Mexico
Coastal Discovery Museum Hilton Head Island, South Carolina*
College Park Aviation Museum College Park, Maryland
Columbia Memorial Space Center Downey, California
Connecticut Museum of Culture and History Hartford, Connecticut
Conner Prairie Fishers, Indiana*
Cosmosphere Inc. Hutchinson, Kansas
Cummings Center for the History of Psychology Akron, Ohio*