Kathleen Siefert

Kathleen Ann Siefert (O'Sullivan)

June 29, 1927 - January 19, 2021
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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, or Autism Speaks, would be appreciated. Funeral Info: 708-429-3200.
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Service Details

  • Visitation

    Sunday January 24, 2021 | 2:00pm - 7:00pm
    Sunday January 24, 2021 2:00pm - 7:00pm
    Lawn Funeral Home - Orland Park
    7732 W. 159th St.
    Orland Park, IL 60462
    Get Directions: View Map | Text | Email
  • Funeral Mass

    Monday January 25, 2021 | 10:00am
    Monday January 25, 2021 10:00am
    St. Bede the Venerable
    8200 S. Kostner
    Chicago, IL 60652
    Get Directions: View Map | Text | Email
  • Interment

    Monday January 25, 2021 | 11:30am
    Monday January 25, 2021 11:30am
    St. Mary Cemetery
    87th St. & Hamlin Ave.
    Evergreen Park, IL 60805
    Get Directions: View Map | Text | Email


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Private Condolence

Tom Gilmore

Posted at 03:20pm
To the Siefert family;
I am so deeply sorry for the loss of your mother. I loved your mom, no one could make me laugh like she did. Her and Her pal Sally were a force to be reckoned with. She always had a smile and was THE BEST IN HELPING EXHIBITORS, We spent many a show on the docks working together, she let me pretend I was the boss (I knew better). Loosing Charley hurt her to her core. She LOVED EACH OF YOU AND ALL THE GRANDKIDS WITH ALL HER HEART.
We need a lot more Katies in this world!

Tom Gilmore

Posted at 02:25pm
You are in my thoughts.
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Heartfelt Sympathies Store

Posted at 01:00pm
With heartfelt condolences,
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JoAnne Davey

Posted at 08:34am
Mary Kay , Kevin , Jimmy , PJ and Marny no words are enough to express our deep sadness we share, Big Kay was one in a trillion and we owe her so very much , we would not be where we are today without her guidance and arm twisting (haha) she truly brought joy and laughter into our lives and not to mention a few very colorful words 😂 she spoke the truth and had no agenda. She is now happy with Stumps , Charlie and I’m sure giving her sister patsy a hard time. ❤️❤️❤️🙏🏻🙏🏻🙏🏻
The entire Davey family is better because she was in our lives

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