People United States of America Leonard O'Brien peoplepill id: leonard-obrienLO 9 views today 9 views this weekField hockey playerLeonard O'BrienBiographyListsAlso ViewedListsLeonard O'Brien is in following listsBy field of workNotable American athletesGender:Male, Born in:Years 1900 to 1929By work and/or countryNotable American AthletesGender:Male, Born in:Years 1900 to 1929Notable American Field hockey playersGender:Male, Born in:Years 1900 to 1929From our partnersSponsoredLeonard O'Brien