People United States of America Charles Knowlton peoplepill id: charles-knowltonCK 1 views today 20 views this weekAmerican physician, atheist, writer and birth control advocateCharles KnowltonBiographyBibliography (9)ListsAlso ViewedListsCharles Knowlton is in following listsBy field of workNotable American people in literatureGender:Male, Born in:Years 1800 to 1849By work and/or countryNotable American WritersGender:Male, Born in:Years 1800 to 1849From our partnersSponsoredCharles Knowlton