Series consists of Patrick O'Neill's correspondence with constituents, supporters, and government ministers in his role as MP for County Down (and later Mourne division) regarding the concerns of his constituency, including: inquiries relating to pensions, licenses, and agricultural subsidies; filling appointed and hired positions such as Postmaster, Inspector for Ministry of Education, or members of the Royal Ulster Constabulary; amendments of acts and bills (relating to public utilities, transportation, agriculture and fisheries, for example); issues such as temperance and gerrymandering; and matters relating to the development of nationalist politics, such as the creation of the National League and the activities of the Ancient Order of the Hibernians. Series also includes notes, official documents, and newspaper articles regarding the affairs of his constituency. Series is divided into the following sub-series: 1. Correspondence with constituents, 1926-1928 2. Correspondence with constituents, 1935-1936. Sub-series are arranged alphabetically by correspondent or subject. Although Patrick O'Neill sat in parliament from 1921-1938, this fonds contains only correspondence records for the years 1926-1928 and 1935-1936. It is not known at this time where the other records reside; some may be found at the Public Record Office of Northern Ireland.