This subsubseries relates to Mary Robinson (MR)'s work as a Senator in Seanad Éireann, Ireland's upper house of parliament (Senate), and is further broken into six sections covering elections campaigns from 1969-1989 (P143/2/2/1/1); correspondence to and from colleagues and members of the public (P143/2/2/1/2); addresses given at events (P143/2/2/1/3); reports and research (P143/2/2/1/4); "Working for Progress", a black and white photograph of MR giving an address (P143/2/2/1/5) and ephemera (P143/2/2/1/6).
Her work as a Senator also overlaps with her work as a lawyer, in particular in the area of family law, including in relation to campaigning and then legislating for the removal of the ban on contraception and divorce (see P143/1/3).