The Book of Mormon strongly asserts a gathering, not only of Lehi's scattered seed but also of the "Jews." Both Lehi (quoting Joseph of Egypt) and the Old Testament prophet Ezekiel prophesied of a running together of the children of Joseph and the children of Judah. This paper proposes one way in which this prophesied unification of Joseph and Judah into "one nation" may have been in part fulfilled, namely in a joining of the Jews of Sepharad (Sephardic Jews) with the children of Lehi. This occurred when the Sephardic Jews (coming primarily from Spain and Portugal) intermarried with the native inhabitants of the Americas, many of whom are descended from Lehi.
Hopkins, Shon D. and Richardson, D. Chad
"The Children of Lehi and the Jews of Sepharad,"
BYU Studies Quarterly: Vol. 53
, Article 12.
Available at: http://scholarsarchive.byu.edu/byusq/vol53/iss4/12