Theresa Ostrander

Theresa J. ""Tes"" Ostrander

Monday, January 30th, 1928 - Tuesday, May 21st, 2019
Recommend this to your friends.
Share via:

Sign in to the Family Interactive Login

The Family Interactive feature enhances An Amazing Life. Authorized family members can securely access their loved one's memorial website settings at any time.

Share Book of Memories with a Friend

Please enter the name and email details so that we can send your friend a link to the online tribute. No names or addresses will be collected by using this service.

Email Sent

Your email has been sent.

To share your memory on the wall of Theresa Ostrander, sign in using one of the following options:

Sign in with Facebook


Or sign in with your email address

Your condolence has been posted successfully

Provide comfort for the family by sending flowers or planting a tree in memory of Theresa Ostrander

No Thanks

Contact Funeral Home

Please enter your question / comment below:

Email Sent

Your email has been sent.

Theresa's Tribute Fund

  •  Full Name
  •  Initials
  •  Anonymous
By continuing, you agree with the terms and privacy policy.

Theresa's Tribute Fund

There may be a delay while processing. Please do not click the back button or refresh while a payment is processing.


Theresa “Tes” J. Ostrander passed away peacefully in the company of family on Tuesday, May 21, 2019 in Walnut Creek, California. She was 91 years old. A resident of Poughkeepsie for 89 years, in 2017 Tes moved west to play with her granddaughters in the California sun.
Daughter of the late Roland and Lucy Baker, she was born on January 30, 1928. On June 25, 1950 she married the love of her life, Robert “Bob” S. Ostrander at St. Paul’s Episcopal Church in Poughkeepsie. Bob passed away on October 8, 1997.
Following graduation from Arlington High School, Tes worked at Central Hudson in Poughkeepsie before starting a family. Tes was a loving and devoted mother and grandmother who valued family above all. She enjoyed watching her Yankees baseball and was a voracious knitter, known for knitting countless Christmas stockings, winter hats and sweaters for family and friends alike.
Throughout her life, Tes was an enthusiastic volunteer in her community. She was an active member of the Arlington Fire District Auxiliary in her early years. More recently, Tes spent 17 years serving children as a teacher’s assistant at St. Martin de Porres Catholic School in Poughkeepsie.
Survivors include her daughter, Beth Keeler and her husband, Kerry, of Highland, New York; her son Robert Ostrander and daughter-in-law, Madeline Ostrander of Pleasant Hill, California; her two grandchildren, Paige and Bridget Ostrander; as well as many nieces, nephews and friends. In addition to her husband Bob, Tes was predeceased by her sister, Marilyn Cross.
A memorial service will be held at 10 am on Tuesday, June 11 at the mausoleum at Poughkeepsie Rural Cemetery, South Avenue in Poughkeepsie.
In lieu of flowers, memorial donations may be made to St. Martin de Porres Catholic School, 122 Cedar Valley Road, Poughkeepsie, NY 12603, Attention: Kathy Leahy, Principal. Funds will be directed to a scholarship fund. Arrangements are under the direction of the Wm. G. Miller & son FH, Inc., 371 Hooker Ave., Poughkeepsie, NY 12603. If you wish to send to send an online condolence please visit our website
Read Less

To plant a memorial tree in honor of Theresa J. ""Tes"" Ostrander, please visit our Heartfelt Sympathies Store.

Sign Up for Notifications

Receive notifications about information and event scheduling for Theresa

Service Details

  • Service

    Tuesday, June 11th, 2019 | 10:00am
    Tuesday, June 11th, 2019 10:00am
    Poughkeepsie Rural Cemetery
    342 South Avenue
    Get Directions: View Map | Text | Email
  • Interment

    Poughkeepsie Rural Cemetery
    342 South Avenue
    Get Directions: View Map | Text | Email


We encourage you to share your most beloved memories of Theresa here, so that the family and other loved ones can always see it. You can upload cherished photographs, or share your favorite stories, and can even comment on those shared by others.

No video recorded.

Private Condolence
Plant a Tree in Memory of Theresa

Photos & Videos

Photo Album

Upload up to 10 images at a time, max 8MB each
Share by: