Catherine Sheffler late 1803 or early 1804

Catherine only shows up at confirmation in 1821, and taking communion with a couple of the other George Sheffler children between 1826 and 1829. Her birth date range falls in between John and Philip, and there are no other SHEFFLER's around who Catherine could belong to, so I am assuming that her co-participants in Communion are in fact her brother and sister.

I have no other information on this person though, as I haven't found a marriage date or any descendancies.