A Celebration of Life service for Catherine Henning, 84, of Scranton, will be Friday from 3 pm to 5 pm at the Ralston Comunity Building in Ralston.  Memorials may be made to the Greene County medical Center Foundation, 1000 west Lincoln Way in Jefferson.  Dahn and Woodhouse Funeral Home in Scranton is assisting the family.  Online condolences may be left for the family at dahnandwoodhouse.com.  Survivors include:  Daughter, Patty Manues of Eagle Grove and son, Jim Henning of Webster City.  4 grandchildren and 4 great grandchildren.