i am from Balzers, Liechtenstein and there are a lot of Gstoehl living there. A family tree is with this linkhttp://histfam.familysearch.org/surnames-oneletter.php?first...
the name was written Gstoehl, Gstoel, Gstoell, Gstohl, Gstol and Gstoll. Maybe you can find Members of your family tree.
Another link is http://www.llv.li/pdf-llv-la_auswanderer-register2007.pdf
it is the register of individuals who left Liechtenstein.