Cover photo for Patricia S. Stelzer's Obituary
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Patricia S. Stelzer

Patty passed away Friday, October 30, 2020 at her home in Otsego.

She was born April 10, 1964 in Loudonville, Ohio, the daughter of Rev. Paul and Phyllis (Girbert) Stengel. Patty worked for Pfizer as a chemist for 28 years. Patty loved her family and worshipping the Lord. In her free time she enjoyed crafting, sewing, restoring furniture, hiking, camping and gardening. She was a member of Valley Family Church in Kalamazoo, where she was part of the V Crew. On June 14, 1986 in Sandusky, Ohio, she married Dennis Stelzer Jr. who survives.

Also surviving are her children, Nathan (Elizabeth) Stelzer, Kevin (Audrey) Stelzer and Eric (Jess) Stelzer; grandchildren, Eleanor and Michael; her parents; siblings, Paula (Steve) Stellhorn, Pete (April) Stengel and Phil (Donna) Stengel along with many nieces and nephews.

A private family funeral service will be held at Valley Family Church in Kalamazoo.

Burial will follow at Alamo Center Cemetery.

Contributions in memory of Patty may be made to the

American Cancer Society


Messages of condolence may be posted at


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Condolence Messages

John Webster

November 2, 2020 at 11:21 am

Denny and the Stelzer family so sorry to hear of your loss. My condolences to your family and may God bring you comfort during this difficult time

God bless,



Mark Chapman

November 2, 2020 at 11:27 am

Dennis and family, so sorry to hear of the loss of your wife and mother. She was a wonderful member of the band. She will be greatly missed. I’ll be praying for your family.


Mrs. Jim Hewitt. (Patti)

November 2, 2020 at 12:54 pm

To Dennis & Family,

Just came across this news. Shocked and saddened. Can understand and appreciate that Patty took time off from band to be with her family. Wise decision. Be kind & gentle with yourselves, as you have lost a loved one that fills your heart with a vast emptiness. You will be in my thoughts & prayers. Sincerely,


Sue & Doug Renema

November 2, 2020 at 11:47 am

Jess & Eric we are so sorry to hear of your mom’s passing. Please know we are praying for you both as well as your entire family in this difficult time. Love Doug & Sue


John Manski

November 2, 2020 at 11:48 am

In loving memory of Patty. I worked with Patty and Denny for many years and they are two of the best people I have ever known. Patty was an example of everything good in the world. She was kind to all, cared deeply about the world around her, and always acted with dignity and grace. She will be greatly missed by many. My deepest condolences to Denny and all of her family and friends.


Sharon Soltesz

November 2, 2020 at 12:48 pm

Denny and Family,

I am so very sorry to hear about Patty’s passing. Whenever I saw Patty at work, I had a good day. She was just that kind of person. I will keep you in my prayers during this very sad time.


Laura A Martin

November 2, 2020 at 1:47 pm

Denny and family,

My heart aches at your loss. Patty was a truly special woman – brilliant at what she did at Pfizer and always kind and welcoming. She was a light to many people. I will carry many wonderful memories of Patty with me.


Linda Bouwman

November 2, 2020 at 4:06 pm

Denny and family,

I am so very saddened by this awful news. I had not worked directly with Patty for quite some time, but when I did, I knew her to be talented, smart, and kind. Pfizer, the community, and especially you, the family have lost a true gem. My deepest condolences to you all.



Elaine Ritter Shirk

November 2, 2020 at 4:18 pm

Patty was a person that I was fortunate to work with many years ago.

My condolences to her entire family.


Sandy Leversee

November 2, 2020 at 5:55 pm

Dear Denny and family, I am so sorry for your loss. Patty was a wonderful person and will be missed by all that knew her. My prayers and warm thoughts are with you.


Bruce and Cyndi Zimmerman

November 2, 2020 at 6:37 pm

Dear Stelzer family,

We are so sorry for your loss. Patty was such a dear friend that we will always miss and carry wonderful memories of her In our hearts. We feel very honored to have had the chance to get to know her the way that we did. She loved her family with all of her heart and take comfort in knowing she is at peace now.

Love, Bruce and Cyndi



November 2, 2020 at 6:40 pm

Patty was an amazing woman. She had a smile that warmed your heart. Her love for the Lord was to be emulated. She was and continues to be my inspiration for putting God first and moving through life on this earth with a faith so strong that there was/ IS no question as to where she resides today.

I cry today for my loss… but I rejoice for Patty and the life she is enjoying in Heaven.

I know that the loss of Patty will not be easy. Prayers are continued for her family and friends. My heart goes out to you all. I pray that you can feel my loving hug.

Praying for Peace.


Bryon and Kandy campbell

November 2, 2020 at 7:58 pm

We are so very sorry to hear of Patty’s passing! Our hearts and prayers are with your family during this difficult time and may the Lord comfort your hearts as only He can.


Tracy Stevens

November 2, 2020 at 8:20 pm

Dear Denny and family,

What an honor it has been for me to call Patty friend. She will forever impact my life with her joy and steadfast faith.

I am praying for you all that you would experience God’s love and enduring peace during this difficult time.

Love and blessings!



Scott Aldrich

November 2, 2020 at 8:37 pm

Denny and Family,

Her loss is our great loss. She was a sweet, caring and wonderful lab partner and friend. I think of her diligence and spirit, and the way she would brighten our day. We’re all sad. But we all rejoice in having known her and spending some time with her. I will think of her often.

Let your lives be full of her guidance.


Louise Hubbard

November 2, 2020 at 8:58 pm

Denny and family,

So many wonderful memories as band moms when our boys were in high school, and then playing together in RCCB. Patty was a very special lady, and will be missed. Our thoughts and prayers are with your family.

Louise and Dave


Janet Zlomek

November 2, 2020 at 9:26 pm

Denny and Family,

I am so sorry to hear of Patty’s passing. Patty was an amazing scientist and “detective” at Pfizer and was routinely recognized for her customer service and swift results. More remarkable though was the way that Patty worked. Her smile would light up the room and lift the spirits of those around her. She inspired many of us with her goodness and her tenacity. My thoughts and prayers are with you.


John H VanderBilt

November 2, 2020 at 9:43 pm


This does come as a shock as I have always seen Patty as a very happy friend who is now gone. I knew Patty was going through some health issues but when she is taken from this life and world it’s still difficult to accept as reality. May the Lord bring comfort to you Denny as you mourn her loss.


Terry Urban

November 3, 2020 at 2:19 am

Denny, I’m so sorry to hear about Patty and sorry it’s been so long since I’ve seen the two of you. Take comfort in your boys and their families.


Phil and Nancy Reynhout

November 3, 2020 at 7:06 am

We are so sorry to hear of Patty’s passing. We both worked with Patty and Denny for many years. Patty was a special person and will be missed by all. Our thoughts and prayers go out to Denny and family. Phil and Nancy Reynhout


Dan Platzer

November 3, 2020 at 7:50 am

I’m so sorry for your loss. I worked with Patty many years ago at Pharmacia and fondly remember her brightness and smile.


Stacey Platzer

November 3, 2020 at 8:18 am

Denny – I’m so sorry to hear of this loss. My heart breaks for you and your beautiful family. My hope is that the years of beautiful memories you and Patty made together will protect your heart during this painful time and carry you through to some level of peace. My sincere sympathies,


Stacey Platzer


Jean Runge

November 3, 2020 at 8:28 am

I am so sad for your family’s tremendous loss. Patty was always a joy to work with at Pfizer. She was smart, dedicated, friendly and kind to everyone. She will be missed. My condolences to Denny and family.


Joe, Kelly, Mallory and Colin Bohl

November 3, 2020 at 8:57 am

Denny and family. So sorry to hear about Patty. She was kind , smart and always made people feel good. You raised great boys who treated everyone kindly and respectfully.


Cliff Sacks

November 3, 2020 at 9:38 am

Denny and family,

I am so saddened to hear of Patty’s passing. I remember working with both of you . No words can ever replace your loss but I will keep you and your family in my thoughts.


Mike Thomas

November 3, 2020 at 10:00 am

Denny and Family,

I’m so sorry to hear of the passing of Patty. She was a wonderful person and brightened the day for all who crossed paths with her. My thoughts and prayers are with you during this time of grief. My God Bless all of you.


Darren Moroziuk

November 3, 2020 at 10:13 am

To Patty’s family,

I worked with Patty and appreciated her help in many investigations over the years. She was always positive and she found a way to make time to help. I remember fondly of her teaching me to use the microscope to look at crystal shapes so she could ‘get back to work’. Her love of family and the outdoors was evident by the photos in her office. She will be greatly missed.



Sue Scheid

November 3, 2020 at 11:11 am

My sincere sympathy on reading of Patty’s passing. Paul and Phyllis I was so sorry to read about Patty in the Sandusky Register and will keep all of you in my prayers. I will make sure to let Julie and Phil know. Again my deepest sympathy


Kristine Garmon

November 3, 2020 at 12:21 pm

Denny and Family,

So saddened to learn of this tremendous loss. Patty was truly a great person and I loved working with her. She was so incredibly smart and kind. My thoughts and prayers are with all of you.


Stacy Cross and family

November 3, 2020 at 12:55 pm

Denny and family, I’m so devastated at the loss of Patty. I had the wonderful privilege to work with her and play in the band with her, for many years. She was a wonderful person and she will be deeply missed. I wish you comfort and strength in your time of sorrow. She was such a bright light, that did not go out, she will shine down from heaven. My sincere condolences.


Rory Nee

November 3, 2020 at 12:58 pm

Thoughts and prayers for Denny and the family. Remembering Patty as a wonderful person, a dedicated mom, and a talented scientist. She personified the Upjohn motto to Keep The Quality Up in every aspect of her life.


Ed and Lynne Radatz

November 4, 2020 at 7:16 am

To the Stelzer, Stellhorn and Stengel families. You have our prayers and love during this saddening and trying time.


Liz Markley

November 4, 2020 at 2:52 pm

To Paula, Steve and Family : There are no words just know that you are covered in prayer


John Stodola

November 7, 2020 at 10:10 am

Denny, I offer my deepest condolences and will keep you and/or family in my thoughts & prayers. I have very fond memories of working with Patty & you and enjoying your vibrant company at the break and lunch tables. Her good work, positive attitude and clear thinking (yours too!) made many work days brighter. Thanks!


Lynn Higgs

November 10, 2020 at 8:57 pm

Denny and family, we are so sorry to hear of Patty’s passing. We have many happy fun memories of you all sharing Band experiences and thru the friendships our son’s had as well. Patty was always a shining happy light to those around her and a very special person in all her roles in life. May God be with you all with his loving comfort. Love and prayers. Bob and Lynn Higgs and family.



December 24, 2020 at 11:03 am



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