And if you were married by license, you only needed 15 days' residency. This is an excerpt from my gggrandfather's marriage allegation in 1836, in a standard wording:
In which said parish the said
[name] hath had his
usual abode for the Space of Fifteen Days now immediately preceding.
The entire thing is on Page 5 of my Scavenger Hunt a couple of threads down at the moment.
Cheers,
China