In 1841 Ellen Mather (15, F.S.) & Ann Worrel (25 F.S.) were employed by Samuel Taylor at Chorley New Rd. Could this be a missing daughter?
There are no obvious marriages for an Ellen Mather with father Samuel, so this is probably a red herring, although the Ellen working as a servant girl is unexplained!
This may be Ellen Mather in 1861 at Foundry Court, East Bolton (dau, single, 37) with Mother Jame Mather (Wid, 67, born Wigan)