Elen Serine Abelsdatter Vorre to US in 1881

I am seeking any information about my maternal g-g-grandmother, Elen Serine Abelsdatter Vorre. She was born to Abel Kristoffersen and Anna Marta Anensdatter at Vorre (Vårå, Vaare), Avaldsnæs in 1848. The 1865 Avaldsnæs census lists her at Vorre as tjænestepige in the home of her brother-in-law, Nils Torsen, along with her parents and sister (Anna Marte Abelsdatter). http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&filnamn=f61147.wc2&gardpostnr=502&personpostnr=3211&merk=3211#ovre Two sources show that she left Norway in 1881. The bygdebok for Avaldsnæs marks her departure with a simple statement: "Til USA 1881". Emigrants from Stavanger contains two 1881 records for Eli Serine Abeldatter Vorre, but provides no specific departure information: http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&filnamn=STAV&gardpostnr=42790&merk=42790#ovre http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbase&filnamn=STAV&gardpostnr=88104&merk=88104#ovre I'm given to understand that no complete passenger records for Stavanger survive, and that no ships sailed directly from there to the U.S. It appears that about 30 connecting ships sailed from England to the States in 1881. Attempting to locate her in those manifests seems like searching for the proverbial needle in a haystack. I'd be grateful for assistance in uncovering her route to the States, or better yet, for any information anyone might have about her in the States from 1881 onward. Thanks, JK