Menu
Search by Name
Search by Name
Theresa A. DeMars
1957 - 2025
BORN
1957
DIED
2025
FUNERAL HOME
Theresa DeMars Obituary
Theresa A. DeMars, age 67, passed away peacefully at Aurora Medical Center in Oshkosh on Tuesday, November 4, 2025, surrounded by her children. She was born on December 11, 1957, in Neenah, Wisconsin, the daughter of the late Marvin and Susan (Jury) Rochon.
A longtime resident of Neenah, WI, Theresa lived a simple and caring life. She enjoyed the companionship of her many beloved dogs and cats over the years and was happiest in the comfort of home and family.
Theresa is survived by her three children: Daniel (Jackie) Jacob of Neenah, WI; Michelle (Cory) Jacob of Marquette, MI; and Kristin (Bryan) Boelter of Fox Crossing, WI. She is further survived by her sister, Wanda (Dennis) Hase of Lake Tomahawk, WI; her brother, Patrick (Mary) Rochon of Black Creek, WI; six grandchildren, Nathan (Coral), Hannah, Ellah, Maricxa, Legend and Rosie; great-grandchildren, Harmony, Tristan, and Ellie; nephew, Ben Rochon and niece, Emily Rochon, both of Black Creek, WI.
The family would like to extend a heartfelt thank you to the many friends Theresa made at her former residences, whose companionship and care brought her great joy throughout the years.
In accordance with Theresa's wishes, there will be no formal services or celebrations. She will be cremated and laid to rest beside her mother at Oakhill Cemetery in Neenah. Some of her ashes will also be combined with those of her beloved pets and spread at a location she held dear.
In lieu of flowers, please consider a donation in her honor to Saving Paws Animal Rescue (savingpaws.com, N3141 Meade St., Appleton, WI 54913).
The family wishes to thank the ICU staff at Aurora Medical Center for their compassionate care, and Project Linus (projectlinus.org) for the beautiful quilt and pillow covering that brought warmth and brightness to her room in her final days.
Until we meet again, may God hold you in the palm of His hand.
Seefeld Funeral and Cremation Services
1025 Oregon Street
Oshkosh WI 54902
(920) 236-7750
To plant trees in memory, please visit the Sympathy Store.
Memories and Condolences
for Theresa DeMars
Sponsored by Seefeld Funeral & Cremation Services.
1 Entry
The Staff of Seefeld Family of Funeral Chapels
November 7, 2025
Offering our deepest condolences during this difficult time.
Showing 1 - 1 of 1 results
Make a Donation
in Theresa DeMars's name
Memorial Events
for Theresa DeMars
Funeral services provided by:
Seefeld Funeral & Cremation Services1025 Oregon Street, Oshkosh, WI 54902-6456
How to support Theresa's loved ones
Should I Send Sympathy Flowers?
What kind of arrangement is appropriate, where should you send it, and when should you send an alternative?
Read more
What Should I Write in a Sympathy Card?
We'll help you find the right words to comfort your family member or loved one during this difficult time.
Read more
Resources to help you cope with loss
How to Cope With Grief
Information and advice to help you cope with the death of someone important to you.
Read more
Estate Settlement Guide
If you’re in charge of handling the affairs for a recently deceased loved one, this guide offers a helpful checklist.
Read more
Obituaries, grief & privacy: Legacy’s news editor on NPR podcast
Legacy's Linnea Crowther discusses how families talk about causes of death in the obituaries they write.
Read moreWays to honor Theresa DeMars's life and legacy
Obituary Examples
You may find these well-written obituary examples helpful as you write about your own family.
Read more
Obituary Templates – Customizable Examples and Samples
These free blank templates make writing an obituary faster and easier.
Read more
How Do I Write a Eulogy?
Some basic help and starters when you have to write a tribute to someone you love.
Read more
