| Years Covered | Resource | Location |
| 1631 | Muster Roll of Co. Down | SLC film 990025 |
| 1642 | Muster roll for Down | SLC film 897012 |
| 1659 | Penders Census of Ireland | SLC Film 924648 |
| 1660 | Poll Tax | SLC Film 993164 |
| 1663 | Subsidy Roll | SLC Film 1279356 |
| 1669 | Rent Roll of Downpatrick | Ms. Add. 32822 Cambridge Univ. Library |
| 1698 | Poll Tax Return Newry and Mourne | PRONI T1046 |
| 1708 | Householders in the Town of Downpatrick | R.E. Parkinson, "The City of Downe" |
| 1720 | List of Landed Gentry in Co. Down and Antrim | RIA ms. 24 K 19 |
| 1740 | List of Protestants in Parishes of Kilbroney and Seapatrick | NLI Ms 4173 |
| 1761 | Militia List Co. down | GO MS 680 |
| 1766 | Hosueholders of Parishes of Kilbroney and Seapatrick | SLC Film 1279330 |
| 1766 | Householders of Lurgan, part of Shankillo | NAI M2476 |
| 1796 | Spinning Wheel Premiums | SLC |
| 1796-1811 | List of Freeholders in Barony of Upper Iveagh | SLC Film 258701 |
| 1798 | List of Persons Who Suffered Losses in '98 Rebellion | NLI JLB 94107 |
| 1813-24 | List of Freeholders in County Down | SLC Film 258701 |
| 1817 | Chichester Fortescue Estate Rental Roll of Barony of Lr. Iveagh | NAI M3610 |
| 1821-51 | Extracts from Census 1821, 31, 41, 51 SLC Film 258608
|
| 1823-37 | Tithe applotment Survey | SLC |
| 1832 | List of Freeholders on the Marquis of Londonderry's Estate | SLC Film 258713 |
| 1832-36 | Names of Holders of and applicants for License to Sell Liquore in Downpatrick and Newry | Parl. Papers 1837-38 13(2) App. 10 |
| 1837 | Occupants of Newry, Arranged in 2 lists | Parl. Papers 1837 11(1) App. G |
| 1838 | Lists of Marksmenn of Downpatrick and Newry | Parl. Papers 1837 11(1) Appendix A3 |
| 1839 | List of Persons who obtained Game Certificaes in Ulster | PRONI T688 |
| 1842 | Voters List | NAI 1842-113 |
| 1843 | List of Ballycopeland Pres. Congregation | Millisle and Ballycopeland Pres. Church p. 117-21 |
| 1851 | List of all inhabitants in parish of Scarva | RCB Library Ms 65 |
| 1851 | Rental of the estates of Davis S. Ker, for year ending Nov 1851 | SEELB |
| 1851-61 | Census of Pres. Parishoners in Loughlinisland Parish | Family Links 1 (5)(1982) |
| 1852-57 | Poll books for County Down | SLC film 993158 |
| 1856 | Tenants on Anglesey Estate | Louth Arch. J. 12 (2)(1950) |
| 1857 | Poll Book of electors of Co. Down | SLC Film 993159 |
| 1858-60-61 | Scarva C of I members | see 1851 |
| 1863-64 | Griffith's Valuation | SLC |
| 1868 | Alphabetical list of electors who voted and did not, Newry Nov 1868 | PRONI |
| 1891-99 | Register of inhabitants of Killyleagh | SEELB |
| 1901 | Census | NAI |
| 1911 | Census | NAI |
| 1914 | Estate records of Col. J.V. Nugent, Portagferry | SEELB |
| 1740 | Belfast Directory | North Irish Roots 4 (2) 1993 |
| 1807-08 | Belfast Directory | J.R.R.Adams, ed Ulster Historical Foundation, 1992 |
| 1819 | T. Bradshaw's General Directory of Newry, Armagh | . |
| 1820 | J. Pigot's Commercial Directory of Ireland | . |
| 1820 | T. Bradshaw's General Direcotry of Portadown, Waringstown, Banbridge, Warrenpoint, Rostrevor, Kilkeel, Rathfriland, and others | Newry 1819 |
| 1824 | J. Pigot's City of Dublin and Hibernian Provincal Directory | . |
| 1841 | M. Martin's Belfast Directory | . |
| 1872 | Belfast Directory | . |
| 1846 | Slater's National Commercial Directory of Ireland | . |
| 1852 | Henderson's Belfast and Province of Ulster | . |
| 1854 | Henderson's Belfast and Province of Ulster | . |
| 1856 | Slater's National Commercial Directory of Ireland | . |
| 1865 | Wynne's Directory (includes many towns) | . |
| 1870 | Slater's National Commercial Directory of Ireland | . |
| 1881 | S. Farrell's County Armagh Directory and Almanac | . |
| 1883 | G.H. Basseett's County Down, One Hundred Years Ago | . |
| 1886 | G.H. Basseett's County Down, One Hundred Years Ago | . |
| 1894 | Slater's National Commercial Directory of Ireland | . |
| 1916 | Newtownards and Co. Down Illustrated Almanac | . |
| 1918 | Newtownards and Co. Down Illustrated Almanac | . |
| Fam History | Histories of Newry families prior to 1910 | SLC film 259195-219 |
| Fam History | Suranmes of the Upper Ards | Family Links 1 91) 1981 |
| Fam History | A Quaker Wedding at Lisburn | Ir. Anc. 1392 |
| Fam History | Nine generations a history of the Andrews Family, Millers of Comber | I. Andrews 1958 |
| Fam History | The Bradshaws of Bangor and Mile-Cross in the Co. of Down | Ulster J. Arch, 2nd ser. 8 (1902) |
| Fam History | Memoirs of the Camacs of co. down with some account of their predecessors | 1897 |
| Fam History | Clenlow of Co. Down | RCB Library Ms 65 |
| Fam History | Cossett of Co. down | RCB Library Ms 65 |
| Fam History | Long shadows Cast Before: Nine lives in ulster | ISBN 070281058-4 |
| Fam History | The Dunville Family of Redburn House, Holywood 1757-1940 | . |
| Fam History | the Hamilton manuscripts; containing some account of the settlement of the territories of the Upper Clandboye, Great Ardes, and Dufferin | Archers and Sons 1867 |
| Fam History | A short family and personal history J.V. Hamilton | J.V. Hamilton 1995 |
| Fam History | Henry of Co. Down | RCB Library Ms 65 |
| Fam History | Notes of the Family of Magennis, Formerly Lords of Iveagh, newry and Mourne | SLC 1878 |
| Fam History | Magennis of Iveagh | R.S.A.I. 62 (1932) 96-102 |
| Fam History | Pedigree of the magennis (Guiness) Family of North Ireland and of Dublin. | Christchurch, NZ 1897 |
| Fam History | The MCGiffert letters (Of Killyleagh) | . |
| Fam History | The Montgomery Manuscripts 1603-1706 | . |
| Fam History | Neills of Bangor | . |
| Fam History | The Family of Pollock of Newry | . |
| Fam History | Quinn of Newry | RCB Library Ms 65 |
| Fam History | Rea/Rae of Ballynahinch, Hollywood and allied families | Univ of Ca. 1980 |
| Fam History | 21 volumes of papers of the roden family, Newcastle, Co. Down | . |
| Fam History | The Rose-Cleland Family | . |
| Fam History | The ancient and noble family of the Savages of the Ards with sketches of English and American branches | . |
| Fam History | A genealogical history of the Savage family in Ulster. | Chiswick Press 1906[ |
| Fam History | Ancestors and descendants of Alexander Sloane Killyleaagh, Co. Down | . |
| Fam History | The Smillies of Ballynahinch, a genealogy | . |
| Fam History | Smith of Co. Louth and Co. Down | RCB Library Ms 65 |
| Fam History | Stothard of Co. Down | RCB Library Ms 65 |
| Fam History | Stranaghan Family. Co. Down 1800-1950 | . |
| Fam History | Waddell of Co. Down | RCB Library Ms 65 |
| Fam History | West - see county Wicklow | . |
| Newspaper | County Down Spectator | NLI |
| Newspaper | Downpatrick Recorder | NLI |
| Newspaper | Downshire Protestant | NLI |
| Newspaper | Newry Commercial Telegraph | NLI |
| Newspaper | Newry Examiner | NLI |
| Newspaper | Newry Herald and Down, Armagh and Louth Journal | NLI |
| Newspaper | Newry Journl | NLI |
| Newspaper | Newry Reporter | NLI |
| Newspaper | Newry Standard | NLI |
| Newspaper | Newtownards Chronicle | NLI |
| Newspaper | North Down Herald | NLI |
| Newspaper | Northern Star | NLI |
| Wills and Probates | Connor Wills 1818-20, 1853-58 | . |
| Wills and Probates | Down Wills 1850-58 | . |
| Wills and Probates | Down 1646-1858 | . |
| Wills and Probates | Drmoiore 1678-1858 | . |
| Wills and Probates | Newry and Mourne 1727-1858 | . |
| Wills and Probates | Administrations from the Peculiar of Newry and Mourne | Ir. Anc 1(1) |
| Wills and Probates | Belfast District Will Books 1858-1872 | SLC film 917960-917971 |
| Marriage Licenses | Down, Connor and Dromore 1721-1845 | SLC film 100867 |
| Misc. | Administartions from the Peculiar of Newry and Mourne | . |
| Misc. | The Merchant Community of Belfast4 1660-1700 | . |
| Misc. | The Census of 1901 1911 for Copeland Island | . |
| Misc. | Killyleagh and Distrcit Branch Records | . |
| Misc. | Maps of the Mountains of Mourne | . |
| Misc. | The City of Downe from its Earliest Days | . |
| Misc. | Provisional list of pre-1900 School Registers in the PRONI | . |
| Misc. | Some lists of Mid-18th Century Linen Drapers in S.E. Ulster | . |
| Misc. | Two Centuries of Lifei n County Down 1600-1800 | . |
| Misc. | Surnames of Co. down | . |
| Misc. | Historical Notices of Old Belfast | . |
| Misc. | Hillsborough, a parish in the Ulster Plantation | . |
| Misc. | Frontier town, an illustrated history of Newry | . |
| Misc. | The most unpretending of places, a history of Dundonald | . |
| Misc. | Bridges to Banbridge | . |
| Misc. | Statistical Survey of the County Down. | . |
| Misc. | Tide and times in the Port, a narrative history of the County Down village of Groomsport. | . |
| Misc. | Strangford, the forgotten past of Strangford village | . |
| Misc. | A History of Banbridge | . |
| Misc. | Newtown, a history of Newtownards | . |
| Misc. | Lurgan, an Irish provincial town 1610-1970 | . |
| Misc. | An historical account of the diocese of Down and Connor | . |
| Misc. | Ecclesiastical antiquities of Down, Connor and Dromore. | . |
| Misc. | Saint Patrick's town | . |
| Misc. | Statistical account of the parish of Saintfield in the county of Down | . |
| Misc. | Workhouse Records of Clogher Union Work | SLC film 259163-3 |
| Misc. | Workhosue Records of Downpatrick | slc film 259159-61 |
| Misc. | Workhouse Records of Downpatrick | SLC film 259159-61 |
| Misc. | Workhouse Records of Lurgan | SLC film 259166-72 |