The links above take you to several online collections of maps, but of course we also have many in print. These are listed in Discover@MU and are tagged by the place or region covered.
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Social Explorer provides current and historical U.S. social data indicators from public and proprietary sources across demography, economy, health, politics, education, religion, crime, and more, at multiple geographic levels. All data are curated, documented, organized, and processed for ease of use.
The collection consists of six core data sets: U.S. Federal Censuses from 1790 through 1930, genealogy and local history books, Periodical Source Index (PERSI), Revolutionary War Records, Freedman’s Bank Records and LexisNexis U.S. Serial Set records. Access provided by MOREnet.
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Help: https://www.ancestryheritagequest.com/HQA/ResearchAids
Search Guide: https://www.ancestrycdn.com/aainstcommons/2026/researchAids/ancestry-anne-top-10-search-tips.pdf
When searching for maps, it's often helpful to search by the county name as a subject heading, for example:
Gasconade County (MO) maps.
To find guidebooks or accounts of travels, do a subject search combining a place or topic with the sub-heading "description and travel".
For example: Missouri description and travel.
Some useful subject headings or search terms:
ethnology
ethnic identity
population
Immigrants
land settlement
names of specific ethnic groups, e.g. Germans--Missouri or German Americans