1868-1944 18thcentury 20thcentury africanamericanfarmers agriculturaladministration arkansas biography businessmen claycounty economicconditions ethnicrelations farmers farmlife farmtenancy history influence labormovement landlordandtenant landowners landtenure missouri paulmark pfeiffer politicalactivity politicalaspects politicsandgovernment power(socialsciences) religiouslife riots socialconditions workingclass