People United States of America Otto B. Blackwell peoplepill id: otto-b-blackwellOBB 7 views today 8 views this weekAmerican engineerOtto B. BlackwellBiographyListsAlso ViewedListsOtto B. Blackwell is in following listsBy field of workNotable American engineersGender:Male, Born in:Years 1850 to 1899By work and/or countryNotable American EngineersGender:Male, Born in:Years 1850 to 1899From our partnersSponsoredOtto B. Blackwell
