I notice a few other entries for Thomas CURRY and Catherine WYLAM around the same time, and a burial for Catherine WYLAM of Hillhead in 1773, some of the baptisms for the couple had their abode as Hillhead, so I assume this burial is for the mother. So I guess not married if using her maiden surname?
I typed this before I saw your reply so will post anyway. Glad to be of help.
