Michael J. O'Sullivan, Sr., U.S. Army, Vietnam War Veteran, age 76, beloved husband of 50 years to Gail; loving father of Michael, Jr. (Tammy), Sean (Audrey), Theresa (Michael) Ziehm, Sheila (Philip) Lyons; cherished papa of 11; dear brother of Michael, Bridget, Eileen and the late Mary Therese, Mary, Margaret, Nora and Betty. Visitation Tuesday, August 30, from 4 to 9 pm; funeral prayers Wednesday 9:15 am at Lawrence Funeral Home, 4800 N. Austin Ave., Chicago. Procession to St. Robert Bellarmine Church for 10 am Mass of Christian Burial. In lieu of flowers memorials can be made to St. Jude Children's Hospital. Interment All Saints Cemetery. For more info www.lawrencefh.com or 773-736-2300.