Kathleen "Kathy" Heinert

May 8, 1930 ~ September 28, 2021 (age 91)


Kathleen ‘Kathy’ Heinert


Kathleen “Kathy” Heinert, 91, passed away on Sept. 28, 2021, at Fischer Cottage, where she resided for the last three and a half years.

She was born on May 8, 1930, on her grandparents’ farm near St. Anthony, North Dakota, to Anton and Cecilia Bender. She was raised in Mandan, North Dakota, where she met her future husband, Mathias “Matt” Heinert. They were married on Oct. 13, 1951, in Ashbury Park, New Jersey, where Matt was stationed in the Army.

They relocated to Montana and settled in Billings in 1956, where they raised five children. Kathy worked for the federal government and retired from the Bureau of Reclamation in 1994 after 31 years. They were charter members of St. Pius X Catholic Church, where she remained active throughout her retirement.  Kathy was a volunteer for NARFE while maintaining hobbies including walking, reading, crossword puzzles, and 30 years of square dancing with Matt.  She and Matt were married for 54 years and she cared for him during his illness until his passing in 2006.

She was preceded in death by her husband, Matt; parents; brother Raymond; sister Doris Mazigian; and grandsons Anthony Heinert and Justin Gerber. She is survived by her sister, Marlene Schwartzbauer; her five children, Cheryl (Michael) Lavelle (Colorado), Mark (Dee Dee) Heinert (Colorado), Gayle (Jim) O’Donnell (Idaho), Naomi (Gary) Gerber (Billings) and Jon (Becky) Heinert (Minnesota); her grandchildren, Amy Lavelle, Megan (David) Culver, Jake Heinert, Patrick, Brian, Darren and Brendan O’Donnell, Alicia (Tyler) Johnson, Emma and Molly Heinert; great-grandchildren Mason Heinert, Lexi and Easton Culver, and Deklan and Ronan Johnson.

Visitation will be from 6 to 8 p.m. Thursday, Oct. 7, at Michelotti-Sawyers Mortuary, 1001 Alderson Ave. Services will be at 11 a.m. Friday, Oct. 8, at St. Pius X Church, 717 18th St. West. Interment to follow at Holy Cross Cemetery. Michelotti-Sawyers Mortuary is in charge of arrangements.

Memorials may be made to St. John’s United or to St. Pius X Church.

To send flowers to the family or plant a tree in memory of Kathleen "Kathy" Heinert, please visit our floral store.


October 7, 2021

6:00 PM to 8:00 PM
Michelotti-Sawyers Mortuary
1001 Alderson Avenue
Billings, MT 59102

Funeral Service
October 8, 2021

11:00 AM
St. Pius X Catholic Church
717 18th St. West
Billings, MT 59102

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