Hello,
The batch number for the marriage Mosedale/Twigg starts with an I and could be, according to the Hugh Wallis site, submitted entries. Looking at some of the entries on that batch that were post 1837, they were at different churches in Staffordshire and not necessarily in Stafford itself.
Click on the batch no on the IGI entry and look at the list and cross reference with freebmd for the later ones. It may be that the entries are all for places in the Burton - Tutbury - Hanbury area.
Handm