People Mary Ellen Callahan peoplepill id: mary-ellen-callahanMEC 6 views today 6 views this weekUS Department of HOmeland Security officerMary Ellen CallahanBiographyListsAlso ViewedListsMary Ellen Callahan is in following listsBy field of workNotable soldiersGender:FemaleBy work and/or countryNotable OfficersGender:FemaleBy categoryUnited States Department of Homeland Security officialsFrom our partnersSponsoredMary Ellen Callahan