Dennis Frank Petrak

Tell your own story about Dennis

Memories and condolences can be left on the obituary at the funeral home website.

How you can show support

Send flowers

Consider sending flowers.

Add photos

Share their life with photo memories.

Plant trees

Honor them by planting trees in their memory.

Follow this page

Get email updates whenever changes are made.

Share this page

Invite other friends and family to visit the page.

O'Connor Funeral Home & Crematory - Great Falls

Posted event

September 9, 2025

Sep

Celebration of Life

10:00 a.m. - 11:00 a.m.

Episcopal Church of the Incarnation

600 3rd Avenue North, Great Falls, MT 59401

O'Connor Funeral Home & Crematory - Great Falls

Posted an obituary

September 9, 2025

Dennis Petrak Obituary

Dennis Frank Petrak peacefully passed away at his home in Black Eagle, Montana. He was born on August 29, 1947, to Frank and Dorothy (Siefert) Petrak in Wenatchee, Washington. Dennis is survived by two daughters, Natacha Petrak, residing at... Read Dennis Petrak's Obituary