Harthman, Mercedes on December 29, 2016. Beloved wife of Austin Harthman.  Loving mother of Marlene and Austin. Dear grandmother of Anne Elizabeth Harthman, Gene Clarke, Brendan Clarke, Austin Ernest Harthman III and Jacqueline Clarke. Devoted great-grandmother of Sydney Anne Cohen. Reposing Thursday 4-8 PM at Riverdale-on-Hudson Funeral Home, Inc.,  6110 Riverdale Avenue, Bronx NY. Mass of Christian Burial Friday 10 am at St. Gabriel's Church. Interment Gate of Heaven Cemetery, Hawthorne NY.