Jack Allen Williamson, Thornton, Student, Age 15. Son of Jacquiline & Jeff Block. Brother of Jessica and Jeffry. Grandson of Joyce Savolt, Diane & Arnie Block and Jack & Bev Haun. Jack was beginning his Sophomore year at Horizon High School. He loved spending time with his brother and sister and enjoyed Karate. He volunteered his time and talents and his mother refers to him as a "Giver". This is certainly evidenced by Jack being an organ doner. Jack was very close to his grandparents. Grandma Joyce was his world. Family will receive friends on Friday, 4:00 PM -8:00 PM. Funeral Service Saturday, 9:30 AM both at Horan & McConaty Family Chapel, 9998 Grant St. Interment Elmwood Cemetery. Family invites you to sign the guestbook at horanandmcconaty.com.