I suspect if you follow churches done by the same architect you will find quite a few similarities.
Have you looked at the website
http://www.churchplansonline.org/, which has loads of, well exactly what the title of site says, church plans!

Having a quick check on there for the architect you mention above, there is quite a large listing of his works and although I have only looked down the first page the Church of st Lukes at Chesterton Cambridge also has the curved apse feature.
There is also the various acts passed in the 18th century as the population grew to build new churces and many of these were done to a fairly standard plan and by the same architects and just built in different places.
You will probably find it more in the 18th and 19th century churches as there was a greater degree of communication and architects worked more on nation wide commisions plus there has been less time over the intervening centuries for changes to the structure.
Sorry for the essay but it is a favourite subject of mine as I am a buildings conservator.