I'm pretty well convinced that my Eliza Carton Murphy is the daughter of Ralph & Mary Warren. Birth year is the same (1842ish). She's listed in various censuses as birthplace in Arklow, county Wicklow or Seven Churches, Wicklow (same as Glendalough).
Now if there's a connection with Alice Carton. Alice was born around 1846; also in Seven Churches (according to census). She married Michael McGuire. Oldest son named Ralph McGuire born in Annamoe, Wicklow on 19 May 1864; second son John born in Annamoe on 18 June 1866; other children are Ellen born 1870 in Cleator, Cumberland, England; Catherine born 1874 in Askam, Lancashire, England; Michael Jr born 1876 in Millom, Cumberland, England; Eliza Jane born 1878 in Millom.