CornerstoneBank Cornerstone Bank has served Nebraska since 1882. In June of 1990 the First Federal Savings of York office in Central City was purchased and established as a branch of Cornerstone Bank. In April of 1992 the branch moved to its current location at 1631 16th Street. Cornerstone serves 39 communities with 48 banking locations throughout Nebraska. Assets totaled $2.8 billion as of…