Thomas "Tom" Robert Brennan

June 28, 1949March 21, 2020

Thomas Robert Brennan passed away peacefully in Mesa, AZ on Saturday, March 21, 2020. Tom was a beloved husband, father, grandfather, brother, uncle, mentor, and friend. He will be dearly missed. His generosity, positivity, brilliance, wisdom, and love will live on forever in the lives he touched.

Tom married Janice Elaine Gumowski, the love of his life, in 1970. They shared an extraordinary life as best friends since her 17th birthday. He is also survived by their 3 children, Jeffrey Thomas, Sara Rae, and Troy Robert, daughter-in-law Brande, and grandsons Ethan John and Gavin Thomas.

Tom was born to James and Marguerite Brennan on June 28, 1949, in Grand Rapids, Michigan, as the 6th child in a family of 7 kids. He was predeceased by his parents, brother Rich Brennan, and sister Carol Clouse. Surviving siblings are Jerry (Diane) Brennan, Ken (Pat) Brennan, Dan (Deb) Brennan, and Janie (Don) Rosie and brother-in-law Dr. Robert Clouse as well as many nieces, nephews, and great nieces and nephews.

In the summer of 1984, Tom left his Michigan home to follow a dream of growing a business. This dream brought him and the family to Arizona. As founder and president of Compressed Air Power, Tom created a business built on integrity, exceptional service, and loyalty. He started bringing his children into the business in the early 90’s. This enabled all 3 children to have a business and mentoring relationship few are fortunate to experience. To this day, his sons Jeff and Troy carry on his vision for the company.

Throughout his life, Tom wholeheartedly gave of himself for the benefit of those around him. His profound generosity touched the lives of everyone who knew him. Every day of his life was rooted in the desire to be of service, uplift others, share his wisdom, call forth excellence, and remind us that life is to be treasured and lived with vigorous joy. Because of his unconditional, unshakeable love, we are all filled with a deep love for him, each other, and humankind.

Within this tragedy and loss, Tom would want us all to celebrate life. Our greatest wish is that each of us honor his legacy by continuing to make the world a better place like he did for over 70 years.

Tom had a great love and respect for our military and those who served our country. The Gary Sinise Foundation was one of his favorite places to honor those who served. In lieu of flowers, please consider donating to this organization in his name.

Memorial services to celebrate Tom’s life will be held in both Arizona and Michigan. We will post and share details as soon as plans can be firmly made.


  • A Celebration of Tom's Life will take place at a future date. Please check back for updates.


Thomas "Tom" Robert Brennan

have a memory or condolence to add?

Fred Alt

April 7, 2020

Janice and family are thoughts prayers are with you and the Brennan family. Bub was a great friend to have growing up,also as my co - worker and my Best man .He will be missed and so will his Big Smile. Love and prayers to all. Fred and Pat Alt

Casey Brennan

April 6, 2020

I don't have the ability to put into words all that uncle Tom meant to me. Maybe if we were sitting around a campfire, and drinking a few beers, I'd be better able to convey the role Tom had in shaping who I turned out to be.
Tom and I clicked on a level that I've rarely encountered in my life. We were kindred spirits, or at least I always felt that way around him. Even, or maybe especially, when we disagreed we did so in a way that made me feel better about understanding a different perspective and learning a new way to look at things.
I have too many fond memories to list. I'm still in total disbelief that there won't be any new ones. I love you uncle Tom, and I miss you terribly.

Steve Brennan

April 6, 2020

We are so fortunate that Uncle Tom was in our lives! He set an amazing example of what it means to be happy, hardworking, loving and kind! We lost a great ambassador for our family because he embodied all our family stands for- integrity, respect, hard work, love, and faith. "Eternal rest grant unto Tom Brennan, O Lord. And let perpetual light shine upon him. May his soul and the souls of all the faithful departed, through the mercy of God, rest in peace." Our hearts are heavy he is no longer here with us, but our memories of him and his legacy will be with us always! For that, we are certainly blessed!

Lisa McDaniel

April 6, 2020

Uncle Tom was one of the most generous humans I have ever gotten to love. What a beautiful tribute to his important and beautiful life. He was a great example of the American Dream...he made huge sacrifices, worked hard, and spent the rest of his life giving to others. And we will spend the rest of our lives missing him. He's the reason I even looked into moving to Arizona, and my life has been better because of it. Love and Light forever, UT!! - Your niece Lisa

Linda Thompson ( Crandall )

April 4, 2020

Tom had an uncanny ability to make others smile when he shared his insights. His perspective was full of profoundly deep observations that would later cause me to laugh out loud when I recalled his words, scratching my head and what was that Tom said ?
He was truly a great genius and a great leader. Each and every one of us benefited from having known him.
May he rest in peace.

Doug Hendershot

April 3, 2020

You have my sincere condolences Jan, your children and the entire Brennan family.
Tom was my neighbor growing up. He
was truly a great guy and he always had the utmost respect for our country
and the Military. I was glad to be a part
of the class of 67 with Tom, he will be
greatly missed by all.