In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Purdis Farm like this:
PURDIS, an extra-parochial farm in Woodbridge district, Suffolk; 4¼ miles S E of Ipswich.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Purdis Farm has changed, please see our redistricted information for the modern district of Suffolk Coastal. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Purdis Farm and units named after it.
GB Historical GIS / University of Portsmouth, History of Purdis Farm in Suffolk Coastal | Map and description, A Vision of Britain through Time.
Date accessed: 25th May 2016
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Purdis Farm".