My grandmother, Gladys Marie Franck, gave birth to a girl there between 1922 and 1929. When I contacted all of the Catholic Adoption offices that I could find they had no record of my grandmother giving a child up through them. I called the offices in Lincoln and Omaha with no luck. It is very frustrating because Nebraska is mostly a closed record state. You being the adoptee may have better results.
Good Luck
Nona