Sinforosa is the sister to my great Grandfather, Fermin Acebo Casar.Together they traveled from Mirones (Santander) in 1913 and you can find that record at the website for Ellis Island along with a photo of the boat they came over on.
I have recently been doing my genealogy and my grandmother Mary (Fermin's daughter) lent me a number of pictures of her father and her father's family including an image of Sinforosa.It's a copy of a copy I'm afraid but it is very interesting.
Fermin came over and visited his brother Victoriano in Hardwick, Vermont in 1910 and then came back 3 years later with his Sister at which time she moved to California.
You can visit my genealogy page which has a bunch of Acebo pictures and promises to have more in the next couple of days.You can find it at http://www.prydein.com/garceauhttp://www.prydein.com/garceau
It's very exciting to find others searching for the same thing, I can't believe I hadn't seen these posts before.