"How can I find out the name of a church when the license states the ceremony was held at the Parish Church."
I suspect you mean certificate not licence.
I don't think there's a single method that always works but full marks for asking "how" and not just expecting the answer to be served up.
Try in no particular order but Google first -
Google
Parish website
Diocesan website
Tourist website
County record office eg catalogue
Local family history society
census returns
Family History Library
I've omitted printed sources.
"Would there be only one parish church in the parish?"
Yes. Large parishes might also have chapelries which were subordinate to the parish church. NB in this context a parish church is always Church of England.
"Did most of the parishes have their own cementary?"
Cemetery. Early days, yes (church graveyard). More recent times, no or not used any more.
"Please email me at
[email protected] (
[email protected])"
Not the way it works. This is a public forum