| Board school admission registers | ADM | These admission lists are from Pirton Board School which opened in 1877. | 1886 | 1898 | 513 | Hertfordshire Archives and Local Studies |
| Apprenticeships | APR | A list of boys whose apprenticeships were financed by Hammonds Charity. | 1823 | 1906 | 72 | Hertfordshire Archives and Local Studies |
| St Mary's Parish register baptisms | BAP | These are baptism records from St Mary's Parish Registers. | 1562 | 1901 | 5450 | Hertfordshire Archives and Local Studies |
| Pirton methodist register | BAPM | These are baptism records of children who were baptised at Pirton Methodist Church. | 1907 | 1925 | 65 | Pirton Methodist Church |
| Wesleyan methodist register Brand Street Hitchin | BAPMH | These are baptism records of children from Pirton who were bapised at Brand St Methodist Church Hitchin. | 1839 | 1853 | 11 | Hertfordshire Archives and Local Studies |
| St Mary's parish register burials | BUR | These are burial records records from St Mary's Parish Registers. | 1558 | 1914 | 3077 | Hertfordshire Archives and Local Studies |
| Pirton census 1901 | C01 | All persons in the same household as listed in the census. | 1901 | 1901 | 921 | Hertfordshire Archives and Local Studies |
| Pirton census 1841 | C41 | All persons in the same household as listed in the census. | 1841 | 1841 | 761 | Hertfordshire Archives and Local Studies |
| Pirton census 1851 | C51 | All persons in the same household as listed in the census. | 1851 | 1851 | 894 | Hertfordshire Archives and Local Studies |
| Pirton census 1861 | C61 | All persons in the same household as listed in the census. | 1861 | 1861 | 1024 | Hertfordshire Archives and Local Studies |
| Pirton census 1871 | C71 | All persons in the same household as listed in the census. | 1871 | 1871 | 1083 | Hertfordshire Archives and Local Studies |
| Pirton census 1881 | C81 | All persons in the same household as listed in the census. | 1881 | 1881 | 1130 | Hertfordshire Archives and Local Studies |
| Pirton census 1891 | C91 | All persons in the same household as listed in the census. | 1891 | 1891 | 1071 | Hertfordshire Archives and Local Studies |
| Directories of Hertfordshire, Kellys,Pigots | DIR | All persons listed in the directory with their status, trade and location if given. | 1832 | 1937 | 595 | Hertfordshire Archives and Local Studies |
| Hearth Tax returns | HTX | In the 1660s an annual tax of one shilling per hearth was made on all houses in the land, the records for Pirton for 1663 and 1666 have survived. | 1663 | 1666 | 54 | The National Archives, Kew |
| Land Tax Assesment | LTX | This is a tax based on land listing owners and sometimes tenants. | 1745 | 1832 | 2239 | Hertfordshire Archives and Local Studies |
| St Mary's parish register marriages | MAR | These are marriage records from St Mary's Parish Registers. | 1560 | 1909 | 1178 | Hertfordshire Archives and Local Studies |
| Militia list | MBL | A list of all males between the ages of 18 and 45 with a comment as to whether drawn in ballot or reasons for exemption. | 1758 | 1789 | 1146 | Hertfordshire Archives and Local Studies |
| Monuments at St Mary's church | MON | List of names of all the individual persons named on the monument and their dates | 1645 | 1990 | 831 | St Mary's Parish Church in Pirton |
| Memorials in Pirton Methodist Church | MONM | A list of names of all the individual persons named on memorial objects and their dates | 1906 | 1991 | 23 | Pirton Methodist Church |
| Probate documents at Bedford Record Office | PROBB | Probate documents which are held in Bedford. | 1641 | 1641 | 1 | Bedford Record Office |
| Probate documents at HALS | PROBH | Probate documents, wills and inventories are held in Hertford on microfilm. | 1600 | 1853 | 300 | Hertfordshire Archives and Local Studies |
| Probate documents at Huntingdon | PROBHu | Probate documents held in Huntingdon.These engrossed copies are held in numbered volumes called the Archdeaconary of Huntingdon Wills Registers. | 1488 | 1609 | 30 | Huntingdon Record Office |
| Probate documents at National Archives | PROBK | The Prerogative Court of Canterbury was the highest probate court in the land, probate would be taken there if the deceased had land in more than one jurisdiction. | 1565 | 1853 | 28 | The National Archives, Kew |
| Probate documents at Lincoln | PROBL | Probate documents held in Lincoln. | 1577 | 1625 | 3 | Lincoln Record Office |
| Settlement certificates | SETL | A list of people who who held settlement certificates | 1700 | 1781 | 22 | Hertfordshire Archives and Local Studies |
| Transportation records | TRAN | A list of persons who were transported to Australia in 19th century. | 1800 | 1849 | 14 | Hertfordshire Archives and Local Studies |