Rev. Wieslaw Iwaniec will be the celebrant. Bishop John W. Yanta, Bishop Emeritus of Amarillo, will preside.
Members of the countywide St. Mary's Polish Choir from Karnes and Wilson Counties will begin singing Polish Christmas carols (koledy) at 4:30 p.m. For information on Polish choir practice, call (830) 391-3566.
The celebration will be videotaped by a recording company from Houston.