Obituary Listings

L.J. "Cook" Sieja

March 12, 1942 June 30, 2018
L.J. "Cook" Sieja
There are condolences waiting approval on L.J. "Cook"'s Tribute wall
Obituary for L.J. "Cook" Sieja

L.J. “Cook” Sieja, a resident of Naperville, IL, passed away at his home on Saturday, June 30 after a 5 ½ year battle with lung cancer. Cook was born in Toledo, Ohio, graduated University of Toledo and spent 2 years in the US Army serving 1 year in the Vietnam War. He worked for Unitcast Corp in Toledo and National Castings in Sharon, PA and Chicago, joining Portec Rail Products as President of Shipping Systems Division, retiring in 2012. He is survived by his wife of 52 years, Barbara (nee Napierala); his daughters, Lynn (Shannon) Hill, Beth (Kevin) Olson and Jen (Dave) Gocek; his 9 grandchildren: Nathan, Patrick and Matthew Hill, Andrew, David and Megan Olson and Lauren, Dan and Allison Gocek; and his sister, Andrea (Dean) Applin. He was preceded in death by parents, Andrew and Mary (nee Zielinski) Sieja and his brother, David. He will be remembered as a good, kind and loving man and a welcome addition to Heaven.

In lieu of flowers, the family requests donations to The Edward Foundation earmarked for The Cancer Center at or Good Days (Chronic Disease Fund) at Please ensure you reference the donation is in memory of Cook Sieja.

Visitation will be Friday, July 6, 3:00-8:00 PM at the Friedrich-Jones Funeral Home & Cremation Services, 44 S. Mill St., Naperville. The Mass of Christian Burial will be celebrated on Saturday, July 7, 10:00 AM at St. Margaret Mary Catholic Church, 1450 Green Trails Drive, Naperville. Interment will follow at SS. Peter & Paul Cemetery, Naperville.

To send flowers or a remembrance gift to the family of L.J. "Cook" Sieja, please visit our Tribute Store.

Previous Events





3:00 PM 7/6/2018 3:00:00 PM - 8:00 PM 7/6/2018 8:00:00 PM
Friedrich-Jones Funeral Home

44 S. Mill St.
Naperville, IL 60540

Friedrich-Jones Funeral Home
44 S. Mill St. Naperville 60540 IL
United States

Mass of Christian Burial




10:00 AM 7/7/2018 10:00:00 AM
St. Margaret Mary Catholic Church

1450 Green Trails Drive
Naperville, Illinois 60540

St. Margaret Mary Catholic Church
1450 Green Trails Drive Naperville 60540 Illinois
United States

Cemetery Details


SS. Peter & Paul Cemetery Final Resting Place

701 North Ave
Naperville, Illinois 60540

701 North Ave Naperville 60540 Illinois
United States

Memorial Contribution

Edward Foundation

801 S. Washington Street
Naperville, Illionois 60540

Good Days (Chronic Illness Fund)


Create new album
Subscribe To Obituaries

We appreciate your support
In accordance with the wishes of the family, this
message has been declined.
L.J. "Cook" Sieja

Thank you for sharing your
memory of L.J. "Cook"

Provide comfort by sending fresh
flowers from our local florist.

Send Flowers
No thanks, please don't show me this again.