Generation -3

David O'Shaughnessy m. 1840 Ellen Sarsfield

children:     Michael Sarsfield O'Shaughnessy b. 1844 Killoshire, Ireland
                 David O'Shaughnessy

Generation -2

Micahael O'Shaughnessy m. 1874 Ann Molloy

children:    Ellen O'Shaughnessy b. 1876  d. 1965
                 Michael O'Shaughnessy
                 David O'Shaughnessy
                 Mary Kate O'Shaughnessy
                 Edward O'Shaughnessy
                 Annie O'Shaughnessy

Generation -1

Ellen O'Shaughnessy m. 1898 James Molloy

children:     Patrick Molloy
                 Thomas Molloy
                 Mary Molloy
                 Michael Molloy
                 Margaret Molloy
                 James Molloy
                 Kathleen Molloy
                 William Molloy
                 Robe Molloy