People United States of America John Henry Manny peoplepill id: john-henry-mannyJHM 7 views today 11 views this weekAmerican inventorJohn Henry MannyBiographyListsAlso ViewedListsJohn Henry Manny is in following listsBy field of workNotable American businesspeopleGender:Male, Born in:Years 1800 to 1849By work and/or countryNotable American InventorsGender:Male, Born in:Years 1800 to 1849From our partnersSponsoredJohn Henry Manny