1743-1826 1749-1810 1755-1823 1769-1821 1783-1815 1783-1865 1800-1815 active1804-1805 american biography civilization congresses descriptionandtravel diaries diplomaticrelations discoveryandexploration dunbar encyclopedias ethnicrelations explorers extensiontotheterritories familyfarms foreignrelations france frenchinfluences frontierandpioneerlife general george history hunter influencejefferson jefferson juvenileliterature landsettlement local midshipmen napoleonicwars nationalcharacteristics old plantationowners politicalactivity politicalaspects politicsandgovernment presidents relations relationswithamericans relationswithamericansnapoleon seafaringlife seastories slavery socialconditions sources southwest spain state studyandteaching(middleschool) territorialexpansion thomas unitedstates viewsonslaveryjefferson william