Elizabeth Blud born 25 December 1818 Shifnal is showing in Non Conformist register, parents William & Mary
The Hope-Brown Ancestry tree, who two DNA matches have, has Elizabeth Blud born 1811, died 1893.
The name Blud could be fairly common in Shifnal, and the Elizabeth who could be connected to my ancestors married William Ellis, in 1835 when she would have been 24 (born 1811).
If she was Ann's sister, her parents would be Thomas and Sarah Blud.