1901 Census of Ireland

General Notes

1. These census records were extracted from the N.A.I. microfilms accessed via the N.A.I. website, and are reproduced in compliance with the Irish Copyright and Related Rights Act, 2000.

2. The census was taken on 31st March 1901 and is the earliest "complete" census available to the public.

3. The census is probably not 100% complete (even the 2011 census was incomplete!).

4. Ages are often rough estimates. It is useful to cross reference with the 1911 Census.

5. Spellings are typically as found; personal names and placenames reflect both contemporary and colloquial spelling.

6. The original census returns occasionally contain apparent mistakes but most of these have not been corrected.

7. Numerous errors in the N.A.I. transcription (on the N.A.I. website) such as Hannery for Flannery etc. have been reported for correction, but remain uncorrected to date. This means that the N.A.I. website search engine will not display all relevant records.

8. Original manuscript records are often difficult to read; ? denotes ambiguous entry; ?? denotes completely illegible entry.

9. Please query suspected errors with the Webmaster.

Index (the records are alphabetically ordered within each County by District Electoral Division and then by Townland)


1. Address: TL denotes Townland; DED denotes District Electoral Division.

2. Sex: F denotes Female; M denotes Male.

3. Religion: CI denotes Church of Ireland; Presb. denotes Presbyterian; RC denotes Roman Catholic.

4. Birthplace: Co denotes County.

5. Literacy: X denotes Cannot Read or Write; R denotes Can Read only; R + W denotes Can Read and Write.

6. Irish Language: I denotes Speaks Irish only; E denotes Speaks English only; I + E denotes Speaks Irish and English.

7. Marital Status: S denotes Single; M denotes Married; W denotes Widowed.


1. County Names: County Offaly was formerly known as King's County, and County Laois was formerly known as Queen's County.

2. Our extracts are typically confined to Flannery / Flannelly (and recognised spelling variants), and only include other persons if the records indicate that they are related.