Ann had left home by 1841, presumed married, although there is a marriage record in West Derby, 1844, which could be her.
1 Oct 1838 Ann Timmis, daughter of Richard married John Taylor, son of Josiah Taylor at Wolstanton, Staffordshire. In 1841, Ann and John (24 & 26) were in Liverpool with their first son Richard Taylor (5 mo). However, there are no birth records for Taylor with MMN = TIMMIS.
Ann Timmis of Hollinwood, Prestwich married Joseph Whitehead. Ann's father was Richard, but a dyer, not a shoemaker (so not her). Another Ann Timmis, daughter of James married Alonzo Hibbert in 1841 in Manchester.
In 1851, Ann and John Taylor (both 34) were at 10 Mulberry Street, Mount Plesant, Liverpool with sons Richard, William and Henry. (10,8,6). By 1861 John had died and Ann and her three boys were with her mother Mary Harrison at Mount Plesant. Therefore this Liverpool John Taylor (and Ann Yates) are another family.
1886 is the only Liverpool marriage of an Ann Timmis: She married James Page at Liverpool Register Office. This is also likely to be another (as too old).