Church Fabric Survey database
2013
Sources for Cheltenham: St Mark
Gloucestershire County Council
Gloucestershire Historic Environment Record (HER)
2017
Exterior image of 616231 Chelthenham St Mark
2014
Falconer & Gilbert (Toby Falconer)
QI inspection report on Cheltenham: St Mark, 22-Jan-2019
2019
Church Buildings Council
Church Bells
2019
Church of England
A Church Near You
2021
ICBS
Incorporated Church Building Society Archive
1817-1989