| 1659 | Penders Census of Ireland | SLC 924648 |
| 1763 | Tullamore Tenants of the Earl of Charleville | SLC Book 941.5A1 |
| 1766 | Relgious Census of Ballycommon | SLC 100173, 258517 |
| 1802 | Protestants in Parishes of Ballyboggan, Ballyboy, Castlejordan and Ballybeg, Clonmacnoise, Drumcullen, Eglish, Gallen, Killoughey, Lynally, Renagh, Tullamore-Kilbride | Ir. Anmc. 5 (2) (1973) 113-120 |
| 1821 | Government Census of Parishes of Aghancon, Birr, Ettagh, Kilcolman, Kinnitty, Letterluna, Roscomroe, Roscrea, Seirkieran | SLC 100818 |
| 1824 | List of Catholic Householders in Each Townland of Lusmagh Parish on Nov 1, 1824 | SLC |
| 1824 | J. Pigots City of Dublin and Hibernian Privincial Directory | . |
| 1830 | List of Contributors to a New Cathjolic Church at Wherry | Included in Lusmagh Catholic Records |
| 1835 | Census of Tubber Parish arranged by townland, giving age, occupation, and religion of each person | NLI P 1994 |
| 1840 | Census of Parishes of Eglish and Drumcullen, arranged by townaldn | NL |
| 1842 | Voters List | NAI 1842-27 |
| 1846 | Slater's National Commercial Directory of Ireland | . |
| 1852 | Emigrants from Kilconcouse, parish of Kinnitty | Migrants from ireland 1847-52 Baltimore, GPO 1977 pp 57-59 |
| 1854 | Griffith's Valuation | SLC |
| 1855 | Rental of Ballyfarrell and Derrymore | NAI M 601 |
| 1856 | Slater's Royal National Commercial Directory of Ireland | . |
| 1870 | Slater's Directory of Ireland | . |
| 1881 | Slater's Royal National Commercial Directory of Ireland | . |
| 1890 | King's County Directory | MLI |
| 1894 | Slater's Royal National Directory | . |
| 1901 | Census | 843007-20 |
| 1911 | Census | NAI |
| . | "The Fitzgeralds, Barons of Offaly" | R.S.A.I. 44(19143) 99-113 |
| . | Some Notes on the Fox Family of Kilcoursey by Stone | Co. Chicago, 1890 |
| . | The Hopper Family | Ir. Anc 149(2)(1982)13-19, 59-73 |
| . | The Moone Family of Doon | Irish Family Histo. Soc. J. 2 (1986)71-81 |
| . | Odlums of Offaly | Irish Family History 5 (1989) 71-79 |
| . | Pierce Family of Offaly | Irish Family History 8 (1992) 78-83 |
| . | Smith (see also Co. Tipperary) | . |
| . | Narrative Pedigree of the Family of Smith of Co. Offaly | GO Ms. 556 |
| . | The Turpin Family of Tullamore, Co. Offaly | Ir. Anc. 16(1)(1984)1-5 |
| . | The Usehrs of Birr | Ir. Gen 5(5)(1978)606-24 |
| . | Memoir of the Warburton Family of Garryhinch, Kings Co., | Dublin, 1848, 2nd ed. 1881 |
| . | ||
| . | Sources for Offaly History | Byrne, Michael Offaly Research Library, 1978 |
| . | Tullamore Catholic Parish: A historical Survey | Tullamore Parish Committee, 1987 |
| . | The Landscape of Slieve Bloom - A Study of it's Natural and Human Heritage | Dublin, 1979 by Feehan, J. |
| . | The Midland Sept and the Pale, An account of the early septs and later settlers of the King's County and life in the English Pale. | Hitchcock, F.R.M. Dublin, Sealy, 1908 |
| 1655-1915 | High Sherriffs of King's co. | J. Kildare Arch. Hist Soc 8(1) (1915)30-50 |
| 1691-1845 | Marriage Indexes Meath, Killaloe, and Clonfert | SLC 100869 |
| 1740-1850 | Marriage Indexes Kilare | SLC 100868 |
| 1793-1907 | Register of Tenants who Planted Trees: Geashill Parish | J. Kildare Arch. Hist. Soc. 15(3)(1973-74)310-18 |
| 1823-38 | Tithe Applotment Survey | SLC |
| 1840-50 | Rental of Offaly Estate, Parish of Clonsast, Townlands of Brackna, Clonsast, Clonbrock, Ballinoulart, Cappa, Ballyshane, Ballinrahan | NL ms. 4337 |