Classified for credit

Ethnic heritage museum documenting Polish immigration, culture, and contributions to American history with artifacts and archives.

County history museum covering Polk County NC settlement, industry, and community development across multiple eras.

Polk County regional history museum covering Minnesota settlement, agriculture, and local heritage through collected artifacts.

Community museum documenting the history of Port Hueneme and the U.S. Navy Seabees — covers local maritime history and WWII home-front social history.

Historic county jail building in Valparaiso — covers 19th–20th-century criminal justice history and local law-enforcement social history.

Preserved Victorian-era home in Decorah documenting 19th-century domestic life and Norwegian immigrant settlement in Iowa.

Museum documenting Portland's Chinese-American community history — covers immigration history, cultural geography, and 19th–20th century social history.

Portland Police Museum chronicling Oregon law enforcement history — covers civic history, criminal justice, and social studies.

Historic landmark preserving a native post oak tree used as a frontier postal exchange — covers westward expansion and overland trail communication history.

Small heritage museum in Poulsbo covering the town's Norwegian immigrant settlement history and Pacific Northwest cultural geography.

Community maritime museum in Poulsbo documenting Scandinavian fishing and boating heritage on Puget Sound — local history and maritime geography.

Small Montana local history museum — Powder River ranching and Plains-tribe history.

Small county museum covering Prairie County Montana history — addresses homesteading, Great Plains settlement, and regional agricultural history.

Regional history museum in Wayne County, Iowa — documents pioneer settlement, agriculture, and local community history on the southern Iowa prairie.

Local history museum in Prattville, AL preserving artifacts of Autauga County's antebellum, Civil War, and industrial heritage.

Preservation organization managing historic Long Island sites — covers colonial and 19th century Long Island social history and architectural preservation.

County history museum annex in Rogers City covering Great Lakes maritime and regional heritage — supports Michigan local and maritime history curriculum.

Proctor area MN historical museum — local railroad and community heritage.

Regional history museum in Prosser, WA documenting the Yakima Valley's agricultural settlement, pioneer history, and community development.

Advocacy museum presenting a critical history of psychiatry and mental-health institutions — supports historiography, medical ethics, and critical-thinking discussion for older students.

Historic Derby Wharf area store site in Salem — covers colonial maritime trade, Salem history, and 18th-century commerce; part of Salem Maritime National Historic Site.

Historical society museum in Adams family country — covers Quincy's role in American presidential and Revolutionary history as a local primary-source archive.

Small-town Iowa heritage museum covering Radcliffe community and county history — supports Iowa state history and local primary-source study.

Local historical society preserving Radnor Township and Main Line Pennsylvania history — supports Pennsylvania state and colonial American history units.