Church Fabric Survey database
2013
Sources for Leonard Stanley: St Swithun
Antiquarian Horological Society
AHS Turret Clock database
2015
Gloucestershire County Council
Gloucestershire Historic Environment Record (HER)
2017
Jaggery (of geograph.org.uk)
Exterior image of 616190 St Swithun, Leonard Stanley
2014, March 23
Church Buildings Council
Church Bells
2019
James Miles
Bell frames of historic importance
2019
Church of England
A Church Near You
2021
ICBS
Incorporated Church Building Society Archive
1817-1989