Find My Past have an Elizabeth Ann Pope b. 1826, baptised 8 January 1826 at Barnstaple, St. Peter. Father James Pope, a Mason, mother Grace, of Litchdon Street, Barnstaple. Only a transcription, no image of the Baptism Register.

There are other possibilities, ( 1 x Elizabeth Ann Pope) and several Elizabeth Pope, all about 1824 - 1826.

However, none fit all of your details, and this one is the only one having a father, James, a Mason.

Hope this helps, David