Complex sentence: The new pastor carried out a program of reconstruction and expansion that included repair and remodeling all the parish buildings and and redecoration of the church in preparation for upcoming the golden jubilee, May 6,1945.
Split into simpler sentences: The new pastor carried out a program of reconstruction and expansion. Under his direction all of the parish buildings were repaired and remodeled and the church was redecorated in preparation for the golden jubilee, which was celebrated on May 6,1945.