This collection of caches has nothing to do with the Church Micro series in the UK. Given that the Australian 2016 census indicates that No Religion and Jedi Knight are the fastest increasing classifications of the optional religion question "What is the person's religion?" it is not surprising that there is surfeit of empty churches that have been repurposed.
Clinton North Methodist Church. Built 1886. Closed 1955. The buildings still look used, but no info was forthcoming.
Standing at the listed co-ords there is a hall just to the south with a plaque to the right of the door.
Using the two 4 digit years on the plaque as...
ABCD
WXYZ
Calculate S34 08.(A+D)(W+Z)Y E137 56.D(X-C)(W+Y)
Checksum:
South seconds: 18
East seconds: 13
The cache is not far away... Good luck