People United States of America Duncan Spears Casper peoplepill id: duncan-spears-casperDSC 3 views today 3 views this weekAmerican Mormon pioneerDuncan Spears CasperBiographyListsAlso ViewedListsDuncan Spears Casper is in following listsBy work and/or countryNotable American PioneersGender:Male, Born in:Years 1800 to 1849From our partnersSponsoredDuncan Spears Casper