Andrew E. ‘Andy’ Mravca, age 69, of Naperville, beloved husband of Joan E. nee Mozden; loving father of Andrea (Steve Hamel) Mravca, Susan (Peter Spevacek) Mravca and Jim (Theresa); adored grandfather of Morgan and Jordan Hamel and David, Joseph and Samantha Mravca; devoted son of the late Robert and Mary, nee Siska Mravca; dear brother of Robert (Arlene) Mravca, Mary Ann Segvich and the late John Mravca. Mr. Mravca was employed by the U.S. Department of Energy for 42 years, working at Argonne Labs, Argonne, IL and Fermilab, Batavia, IL. Visitation Friday 4 to 8 p.m. at Friedrich-Jones Funeral Home, 44 S. Mill St. Naperville. Services will begin Saturday 9:15 a.m. from the funeral home and will proceed to a 10 a.m. Mass of Christian Burial at St. Thomas the Apostle Church, 1500 Brookdale Rd. Naperville. Interment private. In lieu of flowers memorials to Fermilab Neutron Therapy Facility, PO Box 500, Mailstop 301, Batavia, IL 60510 or to the donors choice. For info 630-355-0213
