Reunited with her parents, Anna (nee Radomski) and Stephen Malczewski.

Beloved wife of the late Nelson Siwa.

Devoted mother of Anne (David) Quinn, Deborah Siwa, Nelson, Jr. (Amy) Siwa, Jennifer (Marty) Augustyniak and David (Jennifer) Siwa.

Loving grandmother of Ashley Siwa, Justin Siwa, Emily Augustyniak, Mathew Quinn, Ethan Augustyniak, Alex Quinn, Ella Augustyniak, Jonathan Quinn, Owen Siwa, and Eli Siwa.

Fond sister of Dorothy (late Edward) March, Josephine (Ted) Moskal and Stephen (Sheila) Malczewski.

Theresa is also survived by many nieces, nephews, and cousins.

Family will be present on Sunday, August 10th from 12-4 PM at the PIETSZAK FUNERAL HOME, 2400 William St. (near Harlem) where services will be held Monday morning at 9:30 AM followed by a Mass of Christian Burial at St. Josaphat Parish at 10 AM.

Burial will follow at St. Matthew's Cemetery, West Seneca, New York.

Theresa's memory will forever be treasured by all who knew her. Her enduring spirit will continue to inspire and uplift us all. Though Theresa is no longer with us, her light continues to shine through each of us whose life she touched. Please leave a message in the Guest Book or upload a photo to the Online Photo Album. Her family and loved ones will cherish these memories and serve as a reminder of the love and joy she brought into the world.