Kathleen ‘Kay, Katie, Kate’ Siefert (nee O’Sullivan), age 93, beloved wife of the late Charles ‘Chuck’ Siefert; devoted mother of Patrick ‘PJ’ (Merny) Siefert, Jim Siefert, Mary Kay (Kevin) Kinnerk and the late Charlie Siefert; loving grandmother of Rick, Patrick (Katie), Susan (David) Perry, Brian (Carrie), John (Kara) and Michael (Taylor) Siefert, Kevin, Connor, and Megan Kinnerk; dear great grandmother of Carter, Cooper and Ashlyn Siefert, Drew, Kaylin and Charlie Perry, Charlotte, Elizabeth, JJ, Emmett, Adalyn and Harrison Siefert; dear sister of the late Mary (Jule) Martin, the late Joe (Alice) O’Sullivan, the late John O’Sullivan, the late Emmett (Dolores) O’Sullivan, the late Frank (Rose) O’Sullvan and the late Aileen ‘Patsy’ (George) Schlomas; fond aunt to many nieces and nephews. Visitation Sunday 2-7 P.M. Due to current Illinois guidelines, visitation is limited to 10 people at all times. We kindly ask you to keep your visitation brief to allow all to pay their respects. Masks and social distancing are required. Funeral Monday 9:00 A.M from Lawn Funeral Home, 7732 W. 159th St. Orland Park to St. Bede the Venerable Church Mass 10:00 A.M. Interment St. Mary Cemetery. In lieu of flowers, donations to JDRF, jdrf.org or Autism Speaks, autismspeaks.org would be appreciated. Funeral Info: 708-429-3200.