Denni J. Slack

Denni J. Slack obituary, Phillipsburg, NJ

Denni J. Slack

Denni Slack Obituary

Obituary published on Legacy.com by Knoll-DeVoe Funeral Home & Cremation Service on Sep. 20, 2026.
Denni J. Slack, 60, of Phillipsburg, NJ, passed away on Thursday, September 17th at Complete Care at Brakeley Park.

Born on February 18, 1966, in Phillipsburg, Denni was the son of the late James and Bertha (Au) Slack. He was raised in the Phillipsburg area and graduated from Phillipsburg High School in 1983.

Denni worked for many years as a contractor, a profession that suited his hardworking nature and his ability to work with his hands.

An outdoorsman at heart, Denni was happiest spending time in the woods. He enjoyed hunting and fishing and appreciated the peace and simplicity that came from being outdoors. Whether enjoying a day in the woods or time with those closest to him, Denni valued life's simple pleasures.

Above all, Denni will be remembered as a loving father, brother, and friend. He leaves behind his son, Wade Slack; his sister, Lori (Slack) Sears and her husband, Colin; his brother, Kyle Slack and his wife, Heather; as well as several aunts, uncles, cousins, nieces, and nephews.

Denni was predeceased by his parents, James and Bertha (Au) Slack.

Denni's love of the outdoors and the memories he created with his family, and friends will remain a lasting part of his legacy. He will be deeply missed by all who knew and loved him.

A memorial service for family and friends will be held at a later. Arrangements are under the care of Knoll-DeVoe Funeral Home & Cremation Service, Washington NJ.

To plant trees in memory, please visit the Sympathy Store.

How to support Denni's loved ones
Attending a Funeral: What to Know

You have funeral questions, we have answers.

Read more
Should I Send Sympathy Flowers?

What kind of arrangement is appropriate, where should you send it, and when should you send an alternative?

Read more
What Should I Write in a Sympathy Card?

We'll help you find the right words to comfort your family member or loved one during this difficult time.

Read more
Poems of Mourning and Comfort

The best poems for funerals, memorial services, and cards.

Read more
Resources to help you cope with loss
How to Cope With Grief

Information and advice to help you cope with the death of someone important to you.

Read more
Estate Settlement Guide

If you’re in charge of handling the affairs for a recently deceased loved one, this guide offers a helpful checklist.

Read more
How to Write an Obituary

Need help writing an obituary? Here's a step-by-step guide...

Read more
Obituaries, grief & privacy: Legacy’s news editor on NPR podcast

Legacy's Linnea Crowther discusses how families talk about causes of death in the obituaries they write.

Read more
Ways to honor Denni Slack's life and legacy
Obituary Examples

You may find these well-written obituary examples helpful as you write about your own family.

Read more
How to Write an Obituary

Need help writing an obituary? Here's a step-by-step guide...

Read more
Obituary Templates – Customizable Examples and Samples

These free blank templates make writing an obituary faster and easier.

Read more
How Do I Write a Eulogy?

Some basic help and starters when you have to write a tribute to someone you love.

Read more

Sign Denni Slack's Guest Book

Not sure what to say?