John J. Jacobek Sr., 100, of Burbank, Ill. World War II Army veteran. Beloved husband of the late Dorothy; loving father of Judith Jensen of Howell, George (Lorraine) and John J. (Janice) Jacobek; dear grandfather of Harry M. (fiancé Sara) Jensen IV, Jesse and Erika (Peter) Johnson; dearest great grandfather of Reegan, Nora, Eli and Danne; fond uncle of many nieces and nephews. Funeral services were arranged by Lawn Funeral Home, 7909 State Road, Burbank, Ill.