Robert J. Mersch, age 86, of Skokie., died April 14, 2019 at Presence Resurrection Life Center Community, Chicago. He was born June 7, 1932 in Chicago, Illinois, to Julius and Agnes Gross Mersch. Veteran, U.S. Army, Korean War; member of I.B.E.W. No. 134; Past Grand Knight, Fr. Stroot Council No. 3243, Knights of Columbus. Beloved husband of Mary, nee McDonnell; dear father of Martin (Mary Beth), Marie (Len) Mrowczynski, Maureen, Margaret, Marlene (Brian Magliozzi), Marjorie (William) Horvath, Matthew (Julie Keefe), Melissa (John) Dore, and the late Michael (Nancy Varco); loving grandfather of Erin, Mairtin (Sara), Anne (Ian), Timothy (Sara), Robert, Tracy, Kelsey (Parker), Courtney, Jenny (Jake), Laurie (Phil), Michael (Jenna), Natalie, Dominick, Sara, Will, Nora, and John; cherished great-grandfather of Gregory. Visitation, Tuesday, April 16, 2019, from 3 to 9 p.m., at HABEN Funeral Home & Crematory, 8057 Niles Center Rd., Skokie. Funeral, Wednesday, April 17, at 9:15 a.m., from the funeral home, for Mass, 9:30 a.m., at St. Peter Catholic Church, 8100 Niles Center Rd., Skokie. Interment, All Saints Catholic Cemetery, Des Plaines. Funeral info: 847.673.6111.