Church Fabric Survey database
2013
Sources for Longdon: St Mary
Antiquarian Horological Society
AHS Turret Clock database
2015
Dave Kelly (of geograph.org.uk)
Exterior image of 642116 St Mary, Longdon
2015, September 29
Philip Halling (of geograph.org.uk)
Interior image of 642116 St Mary, Longdon
2016, December 14
Church Buildings Council
Church Bells
2019
James Miles
Bell frames of historic importance
2019
Church of England
A Church Near You
2021